I can ride my bicycle at a velocity of 5.655 X 10° um/sec. Is this fast or slow? Prove your answer by converting into km/hr.
answer ASAP​

Answers

Answer 1

Answer:

56/hr

Explanation:


Related Questions

The meaning of the word symptom:​

Answers

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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How many grams of H2O will be formed when 32.0 g H2 is mixed with 84.0 g of O2 and allowed to react to form water

Answers

Answer:

94.57 g H2O

Explanation:

32.0 g H2

Molar Mass H2: 2.01 g/mol

84.0 g O2

Molar Mass O2: 32.00 g/mol

Molar Mass H2O: 18.02 g/mol

First balance the eqution:

2H2 + O2 = 2H2O

Find the amount of moles that both 32.0 g of H2 and 84.0 g of O2 can produce using the molar masses:

32.0 g H2 x ((1 mole H2)/ (2.015 g H2)) = 15.88 moles H2

84.0 g O2 x ((1 mole O2)/(32.00 g O2)) = 2.63 moles O2

Now you can find the amount of grams of H2O each reactant will produce:

**keep in mind of mole ratios from balanced equation**

15.88 moles H2 x ((2 moles H2O)/(2 moles H2)) x ((18.015 g H2O)/(1 mole H2O) =286.07 g H2O

2.63 moles O2 x ((2 moles H2O)/(1 mole O2)) x ((18.015 g H2O)/(1 mole H2O) = 94.76 g H2O

94.76 is the final answer because this is the limiting reactant, meaning it produces less product than the H2 so it limits the reaction from producing anymore product from the amount calculated.

How many moles of KBr are dissolved in 60.2 mL of a 3.50 M solution?

Answers

There are 0.2107 moles of KBr are dissolved in 60.2 mL of a 3.50 M solution.

The molarity of a substance is defined as the number of moles of solute present in 1 litre of a solution.

According to the given data, the molarity of the solution tells us that there are 3.50 moles of KBr in 1000mL of solution. But we only have 60.2mL of solution, so with a mathematical rule of three we can calculate the amount of moles in 60.2mL:

1000 ml - 3.50 moles

60.2 ml -x = 60.2 ml× 3.50 moles/1000 ml

x= 60.2 ml -0.2107 moles

So, there are 0.2107 moles of KBr.

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In which of the following, are all the elements non-metals?

A. Na, Mg, O, N
B. C, Si, Ge, As
C. Fe, Ni, Cr, O
D. He, Ne, Ar, Kr
E. Ca, Ba, Sr, S

Answers

Answer:

The answer is D

Explanation:

Non metals are:

Hydrogen (H)

Sulphur (S)

Phosphorus (P)

Carbon (C)

Fluorine (F)

Oxygen (O)

Nitrogen (N)

Chlorine (Cl)

Bromine (Br)

Helium (He)

Argon (Ar)

Iodine (I)

Neon (Ne)

Krypton (Kr)

Radon (Rn)

Selenium (Se)

Xenon (Xe)

What is the average atomic mass of 10 hydrogen -1 molecules?

Answers

Answer:

1.674 x 10^-23 grams

Explanation:

Hydrogen-1 is called Protium

wikipedia

atomic mass of Protium is 1.00794 amu

sciencedirectcom

atomic mass of 10 Protiums is 10.0794 amu

10.0794 amu in grams is

1.6737236x10^-23 grams

a. 1.7 grams of Ca are mixed with 850.6 ml of 0.043 M HBr. What is the maximum theoretical yield of the gaseous product in grams?
b. how many grams of the excess reagent are left over?
c. what is the pH of the HBr solution?
d. what is the OH- concentration of the HBr solution?
e. if the gas is produced at 89C and 1.7 atm of pressure, what is the volume of gaseous product in mL?
f. the pressure of the gas is changed to 250 mmHg and the volume is changed to 1.54 L. what is the temperature of the gas now?

Answers

A. The maximum theoretical yield of the gaseous product in grams is 0.037 g

B. The grams of the excess reagent are left over is 0.97 g

C. The pH of the HBr solution is 1.37

D. The OH¯ concentration of the HBr solution is 2.33×10¯¹³ M

E. The volume (in mL) of the gaseous product is 323 mL

F. The new temperature of the gas is 61 °C

How to determine the mass of HBr

We'll begin by calculating the mole of HBr in the solution. This is illustrated below:

Volume = 850 mL = 850.6 / 1000 = 0.8506 L Molarity = 0.043 MMole of HBr =?

Molarity = mole / Volume

Mole = molarity × volume

Mole of HBr = 0.043 × 0.8506

Mole of HBr = 0.0366 mole

Thus, the mass of HBr can be obtained as follow:

Mole of HBr = 0.0366 moleMolar mass of HBr = 81 g/molMass of HBr =?

Mass = mole × molar mass

Mass of HBr = 0.0366 × 81

Mass of HBr = 2.96 g

A. How to determine the maximum theoretical yield

Balanced equation

Ca + 2HBr --> CaBr₂ + H₂

Molar mass of Ca = 40 g/mol

Mass of Ca from the balanced equation = 1 × 40 = 40 g

Molar mass of HBr = 81 g/mol

Mass of HBr from the balanced equation = 2 × 81 = 162 g

Molar mass of H₂ = 2 g/mol

Mass of H₂ from the balanced equation = 1 × 2 = 2 g

SUMMARY

From the balanced equation above,

40 g of Ca reacted with 162 g of HBr to produce 2 g of H₂

Next, we shall determine the limiting reactant.

From the balanced equation above,

40 g of Ca reacted with 162 g of HBr.

Therefore,

1.7 g of Ca will react with = (1.7 × 162) / 40 = 6.885 g of HBr.

Since a higher amount of HBr is needed, therefore HBr is the limiting reactant and Ca is the excess reactant

Finally, we shall determine the maximum theoretical yield of the gaseous product. details below

From the balanced equation above,

162 g of HBr reacted to produce 2 g of H₂.

Therefore,

2.96 g of HBr will react to produce = (2.96 × 2) / 162 = 0.037 g of H₂

Thus, The maximum theoretical yield of the gaseous product obtained is 0.037 g

B. How to determine the mass of the excess reactant leftover

Ca is the excess reactant

From the balanced equation above,

162 g of HBr reacted with 40 g of Ca.

Therefore,

2.96 g of HBr will react with = (2.96 × 40) / 162 = 0.73 g

Thus, the mass of the excess reactant leftover can be obtained as illustrated below:

Mass of excess reactant given = 1.7 gMass of excess reactant that reacted = 0.73 gMass of excess reactant leftover =?

Mass of excess reactant leftover = 1.7 - 0.73

Mass of excess reactant leftover = 0.97 g

C. How to determine the pH of HBrMolarity of HBr = 0.043 MHydrogen ion concentration [H⁺] = 0.043 MpH =?

pH = –Log H⁺

pH = –Log 0.043

pH = 1.37

D. How to determine the OH¯ concentrationHydrogen ion concentration [H⁺] = 0.043Hydroxide ion concentration [OH¯] =?

[H⁺] × [OH¯] = 10¯¹⁴

0.043 × [OH¯] = 10¯¹⁴

Divide both side by 0.043

[OH¯] = 10¯¹⁴ / 0.043

[OH¯] = 2.33×10¯¹³ M

E. How to determine the volume of the gas productTemperature (T) = 89 °C = 89 + 273 = 362 KPressure (P) = 1.7 atmGas constant (R) = 0.0821 atm.L/Kmol Mass of gas product (H₂) = 0.037 g Molar mass of H₂ = 2 g/molNumber of mole (n) = 0.037 / 2 = 0.0185 moleVolume (V) =?

Using the ideal gas equation, the volume of the gas can be obtained as follow:

PV = nRT

Divide both side by P

V = nRT / P

V = (0.0185 × 0.0821 × 362) / 1.7

V = 0.323 L

Multiply by 1000 to express in mL

V = 0.323 × 1000

V = 323 mL

F. How to determine the new temperatureInitial volume (V₁) = 323 mL = 323 / 1000 = 0.323 LInitial pressure (P₁) = 1.7 atmInitial temperature (T₁) = 89 °C = 89 + 273 = 362 KNew Volume (V₂) = 1.54 L New pressure (P₂) = 250 mmHg = 250 / 760 = 0.329 atmNew temperature (T₂) =?

The new temperature of the gas can be obtained by using the combined gas equation as illustrated below:

P₁V₁ / T₁ = P₂V₂ / T₂

(1.7 × 0.323) / 362 = (0.329 × 1.54) / T₂

Cross multiply

1.7 × 0.323 × T₂ = 362 × 0.329 × 1.54

Divide both side by 1.7 × 0.323

T₂ = (362 × 0.329 × 1.54) / (1.7 × 0.323 )

T₂ = 334 K

Subtract 273 to obtain answer in °C

T₂ = 334 – 273 K

T₂ = 61 °C

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what kinda of water movement helps the fishing industry

Answers

Answer:

Upwelling is the natural process which brings cold, nutrient-rich water to the surface. A huge upwelling regularly occurs off the coast of Peru, which enjoys a large fishing industry as a result. Upwelling is a process in which currents bring deep, cold water to the surface of the ocean.

Explanation:

good luck

How many dozens are 34 gross of eggs?

Answers

34 gross is equal to 4896 (a gross refers to 144 items, so multiply 34 by 144 to get 4896). since a dozen is 12, all you have to do is divide 4896 by 12 to get the dozen... answer ends up being 408!

How to Balance __MgF2 + __Li2CO3 + __ LiF

Answers

__MgF2 + __Li2CO3 + __ 2LiF

does titanium need to be processed before being used?

Answers

Answer:yes

Explanation:….

Answer:

It can be processed. It just has to be processed in batches, because it's not iron

Explanation:

Features passed from parent to offspring, such as eye color, is an example of what?

Answers

Parents pass characteristics such as hair color, nose shape, and skin color to their offspring. Not all of the parents' characteristics will appear in the offspring, but the characteristics that are more likely to appear can be predicted.

19. 1 mole = _____________________ _________________ g

Answers

Answer:

344.1g

Explanation:

A 15.0 mL portion of a 0.400 M solution of acetic acid is to be titrated with a standarized 0.250 M solution of KOH. What is the expected volume of the KOH solution needed to reach the phenolphthalein end point?

Answers

b.9.38 ml.The volume of KOH required to neutralize the acetic acid is:9.38ml

The equation for the reaction between acetic acid (CH3COOH) and potassium hydroxide (KOH) is:

CH3COOH + KOH → CH3COO- + K+ + H2O

The titration of acetic acid with potassium hydroxide can be used to determine the concentration of the acetic acid solution. The volume of KOH required to neutralize the acetic acid can be calculated using the equation:

Volume (KOH) =\(\frac{ (Molarity of acetic acid) * (Volume of acetic acid) }{(Molarity of KOH)}\)

In this problem, the volume of KOH required to neutralize the acetic acid is:

Volume (KOH)

\(\frac{(0.400 M) * (15.0 mL) }{ (0.250 M)}\\= 9.38 mL\)

Therefore,It takes 9.38 ml of KOH to neutralise 1 g of acetic acid.

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Complete question:A 15.0 mL portion of a 0.400 M solution of acetic acid is to be titrated with a standarized 0.250 M solution of KOH. What is the expected volume of the KOH solution needed to reach the phenolphthalein end point?

a.22.50 ml

b.9.38 ml

c.6.00 ml

d.3.75 ml

e.24.00 ml

A chemical change creates a new
A-atom
B-element
C-substance

Answers

Answer:

c substance

Explanation:

Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance. The same number of particles that exist before the reaction exist after the reaction.

substance

If there is a change in something that is already a substance, it becomes a new substance

What is the mass percentage of C in morphine, C₁7H19NOs? Provide an
answer to two decimal places.

What is the mass percentage of C in morphine, C7H19NOs? Provide ananswer to two decimal places.

Answers

The mass percentage of C in morphine would be 4.21%.

What is mass percentage?

The mass percentage of a composition in a compound is the mass of the composition relative to the mass of the entire compound. This can be mathematically expressed as:

Mass percentage = mass of component/mass of substance x 100%

In this case, we are looking for the mass percentage of C in \(C_{17}H_{19}NO_3\).

Molar weight of C = 12 g/mol

Molar mass of  \(C_{17}H_{19}NO_3\) = (12x17) + (1x19) + (14x1) + (16x3)

                                             = 285 g/mol

Mass percentage of C = 12/285

                                     = 4.21% to 2 decimal places.

In other words, the mass percentage of C in morphine is 4.21%.

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help plz ill give extra points

help plz ill give extra points

Answers

D all the above.

hope this helps!

Answer: i think its d sorry if im wrong

Explanation:


NaCl + AgNO, = AgCl + NONO,
If you have 98 grams of sodium chloride, 47 grams of silver nitrate, and 59 grams of silver
chloride, then how many grams of sodium nitrate will you have?

145 grams
86 grams
18 grams
101 grams

Answers

Based on the mass ratio of reactants, 23.5 g of sodium nitrate is produced from the reactants.

What is mass ratio of a chemical reaction?

The mass ratio of a reaction is the ratio of the masses of reactants wilhich combine to form products.

The mass of sodium nitrate is determined from the mass ratio.

The equation of the reaction gives the mass ratio as follows:

NaCl + AgNO3 ----> AgCl + NaNO3

Molar mass of NaCl = 58.5 g

Molar mass of AgNO3 = 170 g

Molar mass of AgCl = 143.5

Molar mass of NaNO3 = 85 g

There are 98 grams of sodium chloride, 47 grams of silver nitrate, therefore silver nitrate is the limiting reactant.

47 grams of silver nitrate will produce 85/170 × 47 = 23.5 g of sodium nitrate.

Therefore, 23.5 g of sodium nitrate is produced from the reactants.

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Can somebody please help me solve this, I really need some help.

Can somebody please help me solve this, I really need some help.

Answers

Ethyl propanoate is an organic compound that is a member of a family of organic compounds known as esters.

Answer of both the question is :

a. The Lewis electron dot diagram for ethyl propanoate is as follows:

H  H    H

|    |     |

C-C-C-O-C

|    |     |

H  CH3-CH2-

b. Each oxygen atom in ethyl propanoate has a hybridization of sp3. The lone pairs of electrons on each oxygen atom occupy two of the hybridized orbitals, while the other two hybridized orbitals form sigma bonds with the carbon and hydrogen atoms.

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A pure copper cube has an edge length of 3.00 cm

How many copper atoms does it contain? (volume of a cube = (edge length)^3

; density of copper = 8.96 g/cm^3)

A pure copper cube has an edge length of 3.00 cmHow many copper atoms does it contain? (volume of a cube

Answers

Since this equals (edge length)3, the cube's volume is 3 * 1.12 cm, or 3.36 cm3. As a result, the cube has 3.36/8.96 g/cm3 = 0.43 grammes of copper atoms.

What is the perimeter of a volumetric cube?

V= s3, where s is the length of one of the cube's edges, is the formula for a cube's volume. The length of the edge is equal to the volume's cube root, or 4 cm, if the volume is 64.

How do I figure out the atom count?

To get the number of moles in an element or compound, divide the supplied mass by the element or compound's molar mass.

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Compare Xavier's cup design with the criteria and constraints given. What parts of Xavier's cup design were successful? What parts were unsuccessful?

Answers

Answer:

The lid is successful and so is the handle. I dont think the thick glass would work out as good unless you only keep inside and the compartment cylinder is what made thier beverages taste different from what I think. 

Explanation:

I need help with these someone please i’ll give you extra

I need help with these someone please ill give you extra

Answers

The number of moles of chlorine that are produced if 35.4 grams of aluminum chloride react is 0.37 moles.

The mass in grams of carbon tetrachloride that will be produced from 52.5 grams of Cl₂ is 28.47 grams.

The number of moles of oxygen that are produced if 22.8 grams of potassium chlorate decompose is

What moles of chlorine are produced?

The number of moles of chlorine that are produced is calculated as follows:

Equation of reaction:  2 AlCl₃ + 3 F₂ --> 2 AlF₃ + 3 Cl₂

The molar mass of AlCl₃ = 143.5 g/mol

Moles of AlCl₃ that reacted = 35.4/143.5 moles

Moles of Cl₂ produced = 35.4/143.5 * 3/2

Moles of Cl₂ produced = 0.37 moles

The mass in grams of carbon tetrachloride produced will be:

Molar mass of Cl₂ = 71.0 g/mol

Molar mass of carbon tetrachloride = 154 g/mol

Moles of Cl₂ = 52.5/71 moles

Mass of carbon tetrachloride produced = 52.5/71 * 1/4 * 154

Mass of carbon tetrachloride produced = 28.47 grams

The number of moles of oxygen that are produced will be:

Equation of the reaction: 2 KClO₃ ---> 2 KCl + 3 O₂

The molar mass of KClO₃ = 122.5 g/mol

Moles of KClO₃ reacted = 22.8/122.5 moles

Moles of oxygen produced = 22.8/122.5 * 3/2

Moles of oxygen produced = 0.279 moles.

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Research: Find 4 strategies that are used to prevent rusting of car parts and/or water pipes? Briefly explain how they work in your own words. What are some pros and cons of these methods?

Answers

Question

Research: Find 4 strategies that are used to prevent rusting of car parts and/or water pipes? Briefly explain how they work in your own words. What are some pros and cons of these methods?

Answer

Method 1: Applying Oil - Coating materials with oil will help to prevent rust or slow its formation since it prevents moisture from reaching the iron, which can get oxidized.

Pros: It can be applied easily to most materials and it's of relatively low cost

Cons: Some materials can't be covered with oil because they can interfere with the process they are designed for. Example: Food transport machinery

Method 2: Paint the metal - Similarly to the oil a good amount of paint can cover the metallic parts and prevent moisture from the air to get in direct contact with the iron.

Pros: It is easy to apply paint to most metals.

Cons: Contrarily to oil, paint can be more expensive depending on the application.

Method 3: Galvanization - is the process of applying a protective zinc coating to iron or steel materials to prevent or slow the rusting processes.

Pros: The galvanization process makes steel highly durable and the material usually becomes scratch free.

Cons: Steel structures that are either too big or too small are unsuitable for the galvanization process.

Method 4: Store in a controlled environment - Metals corrode easily when exposed to environments with high humidity. To preserve a metal in good condition, it should be stored in environments with low humidity content and not in contact with salts or acids.

Pros: It does not alter the properties of the equipment.

Cons: Not all metal objects can be stored in environments containing low humidity.

A sample of ammonia, NH3, has a mass of 78.25 g. Calculate the number of ammonia molecules in the sample.
number of molecules:

Answers

There are approximately \(2.76 * 10^{24\) ammonia molecules in the given sample.

To calculate the number of ammonia molecules in the sample, we need to use Avogadro's number and the molar mass of ammonia.

The molar mass of ammonia \((NH_3)\) can be calculated by adding up the atomic masses of nitrogen (N) and hydrogen (H):

Molar mass of \(NH_3\) = (1 x atomic mass of N) + (3 x atomic mass of H)

              = (1 x 14.01 g/mol) + (3 x 1.01 g/mol)

              = 14.01 g/mol + 3.03 g/mol

              = 17.04 g/mol

Now, we can calculate the number of moles of ammonia in the sample using the formula:

Number of moles = Mass of the sample / Molar mass

Number of moles = 78.25 g / 17.04 g/mol

              ≈ 4.5865 mol (rounded to four decimal places)

Finally, we can use Avogadro's number, which represents the number of particles (atoms, molecules, etc.) in one mole of a substance. Avogadro's number is approximately \(6.022 * 10^{23\) particles/mol.

Number of ammonia molecules = Number of moles x Avogadro's number

Number of ammonia molecules ≈ 4.5865 mol x (\(6.022 * 10^{23\) molecules/mol)

                           ≈ \(2.76 * 10^{24\) molecules (rounded to two significant figures)

Therefore, the provided sample contains roughly \(2.76 * 10^{24\) ammonia molecules.

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The number of ammonia molecules in the sample is approximately 2.764 x \(10^{24}\) molecules.

To calculate the number of ammonia molecules in a given sample, we need to use Avogadro's number and the molar mass of ammonia.

The molar mass of ammonia (NH3) is calculated as follows:

Molar mass of N = 14.01 g/mol

Molar mass of H = 1.01 g/mol

Total molar mass of NH3 = 14.01 g/mol + (3 * 1.01 g/mol) = 17.03 g/mol

Now, we can calculate the number of moles of ammonia in the sample:

Number of moles = Mass of sample / Molar mass of NH3

Number of moles = 78.25 g / 17.03 g/mol = 4.594 moles

Next, we use Avogadro's number, which states that there are 6.022 x \(10^{23}\) molecules in one mole of a substance.

Number of molecules = Number of moles * Avogadro's number

Number of molecules = 4.594 moles * 6.022 x \(10^{23}\) molecules/mol = 2.764 x \(10^{24}\) molecules

Therefore, there are approximately 2.764 x \(10^{24}\) ammonia molecules in the given sample of 78.25 g.

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A student is weighing a standard 5.00-g weight four times on two different balances to check them for accuracy and precision. The following table shows the data:

Which of the balances is more accurate? Which is more precise?

A student is weighing a standard 5.00-g weight four times on two different balances to check them for

Answers

A. Balance B is more accurate.

B. Balance A is more precise.

To determine which balance is more accurate and which one is more precise, let's analyze the data provided:

A. Accuracy:

To assess accuracy, we need to compare the average measurements from each balance to the true value, which is 5.00 g.

For Balance A:

Average weight measured = (4.2 g + 4.1 g + 4.3 g + 4.2 g) / 4 = 16.8 g / 4 = 4.2 g

For Balance B:

Average weight measured = (5.1 g + 4.9 g + 4.7 g + 5.2 g) / 4 = 20.9 g / 4 = 5.225 g

Comparing the averages to the true value:

Accuracy of Balance A = |4.2 g - 5.00 g| = 0.8 g

Accuracy of Balance B = |5.225 g - 5.00 g| = 0.225 g

Since the accuracy is determined by the difference between the measured values and the true value, Balance B is more accurate as it has a smaller difference.

B. Precision:

Precision refers to how close the measured values are to each other. To assess precision, we can calculate the standard deviation of the measurements from each balance.

For Balance A:

Standard deviation = \(\sqrt([ (4.2 g - 4.2 g)^{2} + (4.1 g - 4.2 g)^{2} + (4.3 g - 4.2 g)^{2} + (4.2 g - 4.2 g)^{2}]/4)\)

Standard deviation = \(\sqrt([0 + (-0.1)^{2} + 0.1^{2} + 0]/4)\) = \(\sqrt(0.02 / 4)\)

= \(\sqrt(0.005)\) ≈ 0.071 g

For Balance B:

Standard deviation = \(\sqrt([ (5.1 g - 5.225 g)^{2} + (4.9 g - 5.225 g)^{2} + 4.7 g - 5.225 g)^{2} + (5.2 g - 5.225 g)^{2}] / 4)\)

Standard deviation = \(\sqrt([0.075 ^{2} + (-0.325)^{2}) + (-0.525)^{2} + (-0.025)^{2}] / 4)\)

≈ 0.213 g

Comparing the standard deviations:

Precision of Balance A ≈ 0.071 g

Precision of Balance B ≈ 0.213 g

Since precision is determined by the spread or variability of the measured values, Balance A is more precise as it has a smaller standard deviation, indicating less variation in the measurements.

The question was incomplete. find the full content below:

A student is weighing a standard 5.00-g weight four times on two different balances to check them for accuracy and precision. The following table shows the data:

Trial - 1,2,3,4

Balance A - 4.2 g, 4.1  g, 4.3 g, 4.2 g

Balance B - 5.1 g, 4.9  g, 4.7 g, 5.2 g

A. Which of the balances is more accurate?

B. Which is more precise?

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The Lewis structure of an oxygen atom should have _____________ dots drawn around the symbol .The Lewis structure of a calcium atom should have ____________ dots drawn around the symbol Ca. The Lewis structure of a nitrogen atom should have ___________ dots drawn around the symbol N. The Lewis structure of an aluminum atom should have ___________ dots drawn around the symbol Al. The Lewis structure of a fluorine atom should have _________ dots drawn around the symbol F.

Answers

Answer:

Oxygen- 6

Calcium-2

Nitrogen-5

Aluminum-3

Flourine-7

Explanation:

A Lewis structure or dot electron structure is a representation of an atom in which the valence electrons on the outermost shell of the atom are represented as dots.

These dots show the number of valence electrons as well as the group to which the atom belongs in the periodic table.

The Lewis structure of an oxygen atom should have 6 dots drawn around the symbol

The Lewis structure of a calcium atom should have 2 dots drawn around the symbol Ca

The Lewis structure of a nitrogen atom should have 5 dots drawn around the symbol N

The Lewis structure of an aluminum atom should have 3 dots drawn around the symbol Al

The Lewis structure of a fluorine atom should have 7 dots drawn around the symbol F

For Oxygen atom

The oxygen atom has 6 electrons in its outermost shell

Hence, the Lewis structure of an oxygen atom should have 6 dots drawn around the symbol

For Calcium atom

The calcium atom has 2 electrons in its outermost shell

Hence, the Lewis structure of a calcium atom should have 2 dots drawn around the symbol Ca

For Nitrogen atom

The nitrogen atom has 5 electrons in its outermost shell

Hence, the Lewis structure of a nitrogen atom should have 5 dots drawn around the symbol N

For Aluminum atom

The nitrogen atom has 3 electrons in its outermost shell

Hence, the Lewis structure of an aluminum atom should have 3 dots drawn around the symbol Al

For Fluorine atom

The fluorine atom has 7 electrons in its outermost shell

Hence, the Lewis structure of a fluorine atom should have 7 dots drawn around the symbol F

Hence,

The Lewis structure of an oxygen atom should have 6 dots drawn around the symbol

The Lewis structure of a calcium atom should have 2 dots drawn around the symbol Ca

The Lewis structure of a nitrogen atom should have 5 dots drawn around the symbol N

The Lewis structure of an aluminum atom should have 3 dots drawn around the symbol Al

The Lewis structure of a fluorine atom should have 7 dots drawn around the symbol F

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40n and 53n what is the magnitude of the net force on the crate

Answers

The magnitude of the net force on the crate is 13 N.

Generally, in science, the word 'force' has a very precise meaning. Force is usually described as a push or a pull.

Generally the magnitude of the force is described as the number which is used to represent the strength of the force. Let's consider an example, suppose the force is equal to 10 N towards the east direction and 'towards east' indicates direction while '10' indicates the magnitude of the force. So we can say that basically, Magnitude is the 'value' or 'amount' of any physical quantity.

Here, assuming that the two forces are acting opposite,

Net force = 53 N - 40 N = 13 N

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Learn more about force from the link given below.

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40n and 53n what is the magnitude of the net force on the crate

Someone plz hello me ASAP it would be appreciated on question 7 btw

Someone plz hello me ASAP it would be appreciated on question 7 btw

Answers

Answer:

Kinetic Energy is the correct Answer.

Explanation:

At the highest point on the roller coaster (assuming it has no velocity), the object has a maximum quantity of gravitational potential energy. As the object begins moving down to the bottom, its gravitational potential energy begins to decrease and the Kinetic Energy starts to increase.

What tiles should I put in the box?

What tiles should I put in the box?

Answers

Answer:

true&answe

Explanation:

boiling and melting points exploration

Answers

Answer:

Boiling- 212° F melting- 32°F

Explanation:

The average mass of an M&M candy is 0.625 g. What is the mass of 12 M&Ms? The answer should
be reported to three (3) significant figures. Why are there no sig figs associated with 12 M&Ms?

Answers

Answer:The mass of 12 M&Ms can be calculated by multiplying the average mass of an M&M (0.625 g) by the number of M&Ms (12):

0.625 g * 12 = 7.5 g

The answer should be reported to three significant figures, so it would be 7.5 g.

There are no significant figures associated with 12 M&Ms because it is a whole number and does not have any uncertainty. Significant figures are used to indicate the degree of accuracy or precision of a measurement, and whole numbers are considered to be exact values without any uncertainty.

Explanation:

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