Answer:
56/hr
Explanation:
The meaning of the word symptom:
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.
for more such questions on symptom
https://brainly.com/question/21078887
#SPJ8
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
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?
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.
To know more about moles here
https://brainly.com/question/29293653
#SPJ1
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
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?
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?
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 HBrWe'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 yieldBalanced 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 leftoverCa 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
Learn more about molarity:
https://brainly.com/question/9468209
Learn more about stoichiometry:
https://brainly.com/question/14735801
Learn more about pH:
https://brainly.com/question/3709867
Learn more about ideal gas equation:
https://brainly.com/question/4147359
Learn more about gas laws:
https://brainly.com/question/6844441
#SPJ1
what kinda of water movement helps the fishing industry
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?
How to Balance __MgF2 + __Li2CO3 + __ LiF
does titanium need to be processed before being used?
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?
19. 1 mole = _____________________ _________________ g
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?
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.
learn more about acetic acid Refer:brainly.com/question/15202177
#SPJ1
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
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.
What is the mass percentage of C in morphine, C₁7H19NOs? Provide an
answer to two decimal places.
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%.
More on mass percentage can be found here: https://brainly.com/question/16885872
#SPJ1
help plz ill give extra points
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
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.
Learn more about mass ratio at: https://brainly.com/question/24473649
Can somebody please help me solve this, I really need some help.
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.
Yo know more about Esters , visit :
https://brainly.com/question/10840252
#SPJ1
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)
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.
To know more about copper visit:-
brainly.com/question/26474177
#SPJ1
Compare Xavier's cup design with the criteria and constraints given. What parts of Xavier's cup design were successful? What parts were unsuccessful?
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
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.
Learn more about moles and molar mass at: https://brainly.com/question/24191825
#SPJ1
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?
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:
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.
Learn more about moles on:
https://brainly.com/question/24748125
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.
Know more about Avogadro's number here:
https://brainly.com/question/1513182
#SPJ8
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. 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?
Know more about standard deviation here:
https://brainly.com/question/30403900
#SPJ8
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.
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 atomThe 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 atomThe 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 atomThe 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 atomThe 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 atomThe 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
Learn more here: https://brainly.com/question/19244176
40n and 53n what is the magnitude of the net force on the crate
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
The given question is incomplete and the complete question is given in the image attached below.
Learn more about force from the link given below.
https://brainly.com/question/13191643
#SPJ1
Someone plz hello me ASAP it would be appreciated on question 7 btw
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?
Answer:
true&answe
Explanation:
boiling and melting points exploration
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?
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: