Which of the following lists some of the levels of biological organization from less complex to more complex?
A) atoms, cells, molecules, organs
B) atoms, molecules, cells, organs
C) molecules, atoms, cells, organs
D) atoms, molecules, organs, cells

Answer:

The volume of the flask is 20.245 litres .

Explanation:

We are given with following information-

\(PV=nRT\) -------- 1

where R =\(0.0821L.atom/mole.K\)

Molar mass of \(PCl_5=208.22g/mole\)

The given chemical equation is -

\(2P _(_s_)+5Cl_2 _(_g_)\rightarrow2PCl_5 _(_s_)\) --------- 2

Now , calculation -

Mass of \(PCl_5\) formed = 118g

Molar mass of \(PCl_5\) = \(208.22g/mole\)

      Mole = \(\frac{mass (g)}{molar mass}\)

Therefore , moles of \(PCl_5\) formed = \(\frac{118}{208.22}\)

     From equation 2 , we get to know that ,

 2mole \(PCl_5\) formed from 5 mole \(Cl_2 _(_g_)\)

Therefore , \(\frac{118}{208.22}\) mole \(PCl_5\) formed from \(\frac{5}{2} \times\frac{118}{208.22}\) mole \(Cl_2 _(_g_)\)

Moles of \(Cl_2 _(_g_)\) used =\(\frac{5\times118}{2\times208.22} mole\)

R= \(0.0821L.atom/mole.K\)

Pressure (P)= 1.85atm

Temperature (T)= 322K

Moles of  \(Cl_2 _(_g_)\) (n)= \(\frac{5}{2} \times\frac{118}{208.22}\) moles

Applying  the formula above in 1 equation , that is

PV = nRT

putting the given values -

\(1.85 \times V=\frac{5}{2} \times\frac{118}{208.22}\times0.0821\times322\)

 V = 20.245 litres.

Hence , the volume of the flask is 20.245 litres .

The mass of 1 atom of copper metal in the given face-centered cubic structure is determined as  1.054 x 10⁻²² g.

The mass of 1 atom of copper is calculated as follows;

mass of 1 atom of copper = molar mass of copper / Avogadro's number

substitute the value of molar mass of copper and Avogadro's number;

mass of 1 atom of copper = (63.5 g/mol) / (6.023 x 10²³)

mass of 1 atom of copper = 1.054 x 10⁻²² g

Thus, the mass of 1 atom of copper is determined as  1.054 x 10⁻²² g.

Learn more about copper metal here: https://brainly.com/question/24856041

#SPJ1

Based on the information given, the private savings will be $10000 and the gross domestic product is $63000.

From the information given, he following can be gotten:

Since, S = Y - C - G

11000 = Y - 48000 - G

Y - G = 48000 + 11000

Y - G = 59000

Budget surplus = T - G = 1000

5000 - G = 1000

G = 5000 - 1000 = 4000

The GDP will be:

Y - G = 59000

Y - 4000 = 59000

Y = 59000 + 4000 = 63000

Private savings = Y - T - C

Private savings = 63000 - 5000 - 48000

Private savings = 10000

Learn more about GDP on:

https://brainly.com/question/1383956

Answer:Mass of CO2 = 0.60g

Explanation:

Given the chemical rection

Li2CO3(s) + 2HCl(aq) --> 2LiCl(aq) + H2O(l) + CO2(g

No of moles = mass / molar mass

molar mass Li2CO3 = Molecular mass  calculation: 6.941 x 2 + 12.0107 + 15.9994 x 3 =  

= 73.8909 g/mol

therefore Number of moles Li2CO3 = 1.0g / 73.89 g/mol

= 0.0135 moles Li2CO3

From our given Balanced equation,  shows that  

Li2CO3(s) + 2HCl(aq) --> 2LiCl(aq) + H2O(l) + CO2(g

1 mole Li2CO3 produces 1 mole CO2

therefore 0.0135 mol Li2CO3 will produce  0.0135 moles of CO2

Also

No of moles = mass / molar mass

Mass = No of moles x molar mass

molar mass of CO2=12.0107 + 15.9994 x 2=44.0095 g/mol

Mass of CO2= 0.0135 X 44.0095 g/mol =0.594≈0.60g

The value of x in CuSO4. xH2O is 5.

Given that;

Number of moles of anhydrous salt = Number of moles of hydrated salt

Number of moles of anhydrous salt = 319 × \(10^-3\)

Mass of hydrated salt = 499 ×\(10^-3\) g

Number of moles of anhydrous salt = 319 \(10^-3\)g/160 g/mol = 0.00199 moles

Number of moles of hydrated salt = 499 × \(10^-3\) g/ 160 + 18x

0.00199 =  499 × \(10^-3\) g/ 160 + 18x

0.00199 (160 + 18x) = 499 ×\(10^-3\)

0.318 + 0.036x = 0.499

0.036x = 0.499 - 0.318

0.036x = 0.181

x = 0.181/0.036

x = 5

Hence,  x in CuSO4. xH2O is 5.

Learn more: https://brainly.com/question/9743981

If 60 grams of the substance are added to 100 g of water, the solution can be categorized as supersaturated.

The graph shows the number of grams that can be dissolved in 100 grams of water at different temperatures. In general, solubility increases with temperature.

According to the graph, at a temperature of 30°C, it is possible to dissolve a total of 48 to 49 grams of \(KNO_{3}\). This information implies that if we add 60 grams at this temperature not all the substance would be dissolved, and therefore the solution would be supersaturated.

Learn more about solubility in https://brainly.com/question/31493083

#SPJ1

This problem is providing the volume of HCl as 13.91 mL and the volume and concentration of NaOH as 15.00 mL and 3.161 M, respectively. Thus, the concentration of the acid is required and found to be 3.409 M according to the following:

In chemistry, neutralization reactions between acids and bases are used in order to produce a neutral product (salt) for different purposes. Thus, since this problem is about the reaction between HCl and NaOH, we can write:

\(HCl+NaOH\rightarrow NaCl+H_2O\)

Where the acid and the base are in a 1:1 mole ratio; which means we can set the following up:

\(M_{acid}V_{acid}=M_{base}V_{base}\)

Hence, we can solve for the molarity (concentration) of the acid as shown below:

\(M_{acid}=\frac{M_{base}V_{base}}{V_{acid}}\)

And finally plug in the initial data to obtain the result:

\(M_{acid}=\frac{15.00mL*3.161M}{13.91mL}\\ \\M_{acid}=3.409M\)

Learn more about neutralization reactions: https://brainly.com/question/4612545

Explanation:

products are Nacl + H20

Answer:

The bonds between water molecules are easily broken by the strong ions of ionic compounds

Answer:

Electrons transfer in Ionic compounds.

Explanation:

Answer:

Explanation:

Density of a substance can be found by using the formula

\(Density = \frac{mass}{volume} \)

Making mass the subject we have

\(mass = Density \times volume\)

From the question

Density = 2.70 g/cm³

We assume that the aluminum is a cuboid

and volume of a cuboid is given by

Volume = length × width × height

length = 5.3 cm

width = 0.32 cm

height = 2.34 cm

Volume = 5.3 × 0.32 × 2.34 = 3.97 cm³

Substitute the values into the above and solve for the mass

We have

mass = 2.70 × 3.97

We have the final answer as

Hope this helps you

Answer:

Electrical

Explanation:

Biotechnology is the use of living organisms or other biological systems in the manufacture of drugs or other products or for environmental management, as in waste recycling: includes the use of bioreactors in manufacturing, microorganisms to degrade oil slicks or organic waste, genetically engineered bacteria to produce human hormones, and monoclonal antibodies to identify antigens.

Biotech offers the possibility of improving human health, the environment, and agriculture while creating more sustainable modes of production.

Answer:

It is polar.

Explanation:

Water is a polar solvent and it can only dissolve another solute or substance.

As a general rule of solubility "likes dissolves likes".

This implies that when a polar solvent is used, it will dissolve a polar solute.

Also, a non-polar solute will only dissolve in a non-polar solvent.

Answer:

the emperical formula if histame is

Explanation:

C5H9N3

Answer:

down below

Explanation:

The police's influence can happen based on a response to a problem. An example is when the police are called because of a thief child. If the police handles the situation correctly-using reasonable force, if necessary, and reading them their rights- the public will perceive the police in a good light or way. If the police use gross misconduct and do not go by the book, then they will be perceived as an enemy or in a bad light or way.

1. The volume of the stock solution needed is 0.008 L

2. The concentration of the diluted solution is 0.52 M

1. How to determine the volume of the stock solution

We can obtain the volume of the stock solution as follow:

M₁V₁ = M₂V₂

7 × V₁ = 0.480 × 0.120

5 × V₁ = 0.0576

Divide both side by 7

V₁ = 0.0576 / 7

V₁ = 0.008 L

Thus, the volume needed is 0.008 L

2. How to determine the concentration of the diluted solution

We can obtain the concentration of the diluted solution as follow:

C₁V₁ = C₂V₂

7 × 20 = M₂ × 270

140 = M₂ × 270

Divide both side by 270

C₂ = 140 / 270

C₂ = 0.52 M

Thus, the concentration is 0.52 M

Learn more about dilution:

https://brainly.com/question/15022582

#SPJ1

Answer:

The three pKa values for phosphoric acid (H3PO4) are 2.12, 7.21, and 12.32.

From the dilution formula, the final concentration of the solution is  1.4 %.

The final concentration is the concentration at the end of the dilution. We know that dilution is the process by which we add more water to the solution.

Now we have the following;

Initial concentration C1 = 5.4 %

Initial volume V1= 53.5 mL

Final concentration C2= ?

Fina volume V2= 205.0 mL

C1V1 = C2V2

C2 =  5.4 *  53.5/205.0

C2 = 1.4 %

Hence, we have a solution that would have a final concentration of 1.4 %.

Learn more about dilution formula:https://brainly.com/question/7208546

#SPJ1

At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

1: Write the balanced chemical equation:

\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)

2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.

Initial:

\(C_O\)(g) = 0.3500 mol

\(Cl_2\)(g) = 0.05500 mol

\(C_OCl_2\)(g) = 0 mol

Change:

\(C_O\)(g) = -x

\(Cl_2\)(g) = -x

\(C_OCl_2\)(g) = +x

Equilibrium:

\(C_O\)(g) = 0.3500 - x mol

\(Cl_2\)(g) = 0.05500 - x mol

\(C_OCl_2\)(g) = x mol

3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:

Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]

4: Substitute the given equilibrium constant (Kc) value into the expression:

1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)

5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:

1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x

6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.

7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.

8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):

\(Cl_2\)(g) = 0.05500 - x

9: Calculate the value of \(Cl_2\)(g) at equilibrium:

\(Cl_2\)(g) = 0.05500 - x

\(Cl_2\)(g) = 0.05500 - (positive value of x)

10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.

Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

For more such questions on equilibrium, click on:

https://brainly.com/question/517289

#SPJ8

Answer:

dez nuts. the forth quauter in ur girls buttr

Gas is well separated with no regular arrangement, liquids are close together and solids are tightly packed. Solid, liquid, and Gas are the state of substances at room temperature.

There are three state of substances:

The chair you are sitting on is a solid, the water you drink is liquid, and the air you breathe is a gas. The atoms and molecules don't change, but the way they move about does. Water, for example, is always made up of two hydrogen atoms and one oxygen atom.

Physical properties of a particular substance determine its state at room temperature. If both its normal melting point and its normal boiling point are below room temperature (20°C), the substance is a gas under normal conditions.

Oxygen is a gas at room temperature. If the normal melting point of a substance is below room temperature, the substance is a liquid at room temperature.

If both the normal melting point and the normal boiling point are above room temperature, the substance is a solid.

Therefore, solid, liquid and gas all exist as substances at room temperature.

To know more about state of substance, refer to below link:

https://brainly.com/question/7905041

#SPJ2

Answer:

d = 1.53 g/mL

Object will sink into water

Explanation:

Given data:

Mass of object = 14.8 g

Initial volume of water = 25.0 mL

Final volume after adding object = 34.7 mL

Density of object = ?

Density of water = 1.00 g/mL

Solution:

Volume of object = Total volume - volume of water

Volume of object = 34.7 mL - 25.0 mL

Volume of object = 9.7 mL

Density of object;

d = mass/volume

d = 14.8 g /  9.7 mL

d = 1.53 g/mL

The density of water is 1.00 g/mL which means object is heavier than water thus object will sink into the water. The object with density less than water are float in it.

Answer:

A nuclear reaction releases more energy per gram and appears to violate the law of conservation of mass.

Explanation:

The Method of Mixtures Electrical Method is a method used to determine the electrical conductivity of a material.

The Electrical Method is a geophysical prospecting technique that uses electrical resistivity to map subsurface features, such as geological structures, fractures, and mineral deposits.

It involves measuring the amount of current that passes through a mixture of two materials under the application of a known voltage. The electrical conductivity of each material can then be determined by calculating the ratio of the current to the applied voltage. The electrical conductivity obtained from the Method of Mixtures Electrical Method can be used to characterize materials such as semiconductors and insulators.

To learn more about electrical conductivity
https://brainly.com/question/28869256
#SPJ1

Answer:

58.45g is the answer

Explanation:

took the test

The mass of chromium that can be deposited is equal to 58.45 g. Therefore, option B is correct.

For a steady flow of charge through a conductor, the current can be determined with the following equation:

\({\displaystyle I={Q \over t}\)

where Q is the electric charge while time t. If Q and t are measured in coulombs (C) and seconds then I will be in amperes.

Electric charge flows by electrons, from lower potential to higher electrical potential. Any stream of charged objects can constitute an electric current.

Given, the amount of electric current flowing through the solution:

I = 45.2 A

The time for which the current flows, t = 2 hrs = 2 × 60 ×60 = 7200 sec

The charge flowing through the solution, Q = I × t

Q = 45.2 × 7200

Q = 325440 C

The number of moles of electrons in 325440 C charge = 325440/96500 = 3.37 mol

We know Cr³⁺ + 3e⁻ →  Cr (s)

3 moles of electrons deposit of chromium  = 1 mol

3.37 mol of electrons deposit of chromium  = 3.37/3 = 1.12 mol

The mass of chromium in 1.12 mol = 1.12 × 52 = 58.45 g

Learn more about electric current, here:

https://brainly.com/question/2264542

#SPJ2

Answer:

gas lamp, led light, laser, inculding cfls andincandescent lights

a. The rate law for this reaction is: Rate = k[Cl] [H₂]. This means that the rate of the reaction is directly proportional to the concentrations of both Cl and H₂ molecules.

Rate law is an equation that describes the rate of a chemical reaction as a function of the concentrations of reactants. The rate law allows us to describe how the rate of a reaction changes when the concentrations of reactants are changed. It is derived from the rate equation, which is a mathematical expression that can be used to calculate the rate of a reaction from the concentrations of the reactants and the rate constant.

b. The rate law for this reaction is: Rate = k[O] [Os]. This means that the rate of the reaction is directly proportional to the concentrations of both O and Os molecules.
c. The rate law for this reaction is: Rate = k[NO₂]₂. This means that the rate of the reaction is directly proportional to the square of the concentration of NO₂ molecules.

To learn more about rate law
https://brainly.com/question/16981791
#SPJ1

Complete Question: