CHEMISTRY HIGH SCHOOL

20 Which term is defined as a measure of the disorder of a system?(1) heat (3) kinetic energy
(2) entropy (4) activation energy

Answers

Answer 1
Answer: Entropy is the term defined as a measure of the disorder of a system. This occurs mainly when the thermal energy is not available for the mechanical things.
Answer 2
Answer: Heat is a measure of energy in a medium
Kinetic energy is a measure of energy in an object that's resulting in movement
Activation energy is the amount of energy required to start a chemical reaction
Entropy is a measure of disorder in a system
The answer is Entropy

Related Questions

1) 0.143 g Mg into atoms2) 0.101 kg Ti into atoms
Sodium chloride, NaCl forms in this reaction between sodium and chlorine. 2Na(s) + Cl2(g) → 2NaCl(s) How many moles of NaCl result from the complete reaction of 3.9 mol of Cl2? Assume that there is more than enough Na.
A weather balloon at Earth’s surface has a volume of 3.9 L at 299 K and 763 mmHg. If the balloon is released and the volume reaches 4.13 L at 720 mmHg, what is the temperature? Answer in units of K.
Marshall determines that a gas has a gage pressure of 276 kPa. What's the absolute pressure of this gas? A. 326 kPa B. 156 kPa C. 376 kPa D. 176 kPa
Which calculation set-up would be correct to determine the volume of concentrated hydrochloric acid (12.0 M HCl) that is required to make 500.0 milliliters of a 6.0 M HCl?

Acetone is a common solvent and has a density of 0.7899 g/mL. What volume of acetone, in mL, has a mass of 29.3 g?

Answers

V (volume), M (mass), D (Density)
We get: M = 29.3, and D = 0.7899, And V = ? 
The formula to find the volume is: 
V = (M)/(D)
So we get:
V = (29.3)/(0.7899)
V = 37.09

So, the volume of acetone when it have a mass of 29.3 grams is about 37.09 milliliters

Hope this Helps! :)

The mass of a substance is the mass per mole of its entities, where the term entities can describe

Answers

Answer:

            The molar mass of a substance is the mass per mole of its entities, where the term entities can describe atoms, molecules, ions or formula units.

Explanation:

                  Molar mass is the mass of any compound divided by mole. Means, if any chemical is given a specific molar mass it means this mass is being given by 6.022 × 10²³ entities of that chemical.

                  The molar mass of any compound is calculated by adding up the atomic masses of all atoms present in that chemical.

Example:

Molar Mass of H₂ =  1.008 + 1.008  =  2.016 g/mol

Molar Mass of NaOH  =  23 + 16 + 1  =  40 g/mol

Molar Mass of HCl =  1 + 35.5  =  36.5 g/mol

Make the following conversion. 0.075 m = _____ cm 7.5 75 0.0075 0.00075

Answers

7.5 is the answer. You have to move the decimal 2 places to the right.

Answer:

7.5 is the answer. You have to move the decimal 2 places to the right

Explanation:

What is the molecular shape of hydrogen sulphide molecule, H₂S?

Answers

the shape would be bent

Why is glass a good substance for storing chemicals?A. Glass is a noble solid.
B. Glass has low reactivity.
C. Glass is cheap and readily available.
D. The melting point of glass is very high.

Answers

B, I just took the test and the correct answer is b. Cheap doesn't always equal quality.

Perform the following calculations. Express the answers with the correct number of significant figures.a) 7 g - 3.5 g - 2.75 g =


b) 200.00 kg - 199.0 kg =


c) 25 L - 3.0 L =


d) 0.67 cm + 2.0 cm + 0.090 cm =


e) 104.5 g + 0.40 g =

Answers

The answer will be 0.75 gram, 1 kilo-gram, 22 L, 2.76 cm, and 104.9 gram.

What is gram?

A metric unit with mass and weight equal to approximately 15.432 grains, or one-thousandth of a kilo-gram, is called a gram.

Calculation of given question.

a) 7 gram - 3.5 gram - 2.75 gram = 0.75 gram

b) 200.00 kg - 199.0 kg  = 1 kilo-gram

c) 25 L - 3.0 L = 22 L

d) 0.67 cm + 2.0 cm + 0.090 cm = 2.76 cm

e) 104.5 g + 0.40 g = 104.9 gram

To know more about gram

brainly.com/question/12127497

#SPJ2
Since there are no conversions to be done just add them as is
a) 1 g
b) 1.0 kg
c) 22 L
d) 3.6 cm
e) 104.9 g
Other Questions
How is controlling the rate of a chemical reaction useful to a chemical engineer, physician and chef?
Consider the following equation: 0.0136 g + 2.70 × 10-4 g - 4.21 × 10-3 g = ? How many digits to the right of the decimal point should be used to report the result?
When you strike a match, you produce frictional heat energy. What does this input of energy represent in a chemical reaction?A.the energy of the reactants B.the energy of the products c.the energy of activated complex d.the energy of activation
Describe how to properly measure the volume of a liquid.