SS Session 2 Rev

Question 1

The relationship between grams, moles and particles (Avogadro's number) in Chemistry is

Accepted Answer

1 mole = molar mass = 6.02 x10^23 particles

Question 2

What is the mole ratio of iron (III) oxide to iron in this equation:

Accepted Answer

2:4

Question 3

What is the molar mass of Mg3N2?

Accepted Answer

100.95 g/mol

Question 4

The law of conservation of energy states that:

Accepted Answer

Energy cannot be created or destroyed, but it can be changed in form.

Question 5

A balanced chemical equation explicitly provides you with the

Accepted Answer

mole ratios needed to solve a stoichiometry problem.

Question 6

What is the order for stoichiometric conversions?

Accepted Answer

given→moles→mole ratio→moles of wanted→desired unit

Question 7

What is the mass of 2 moles of H2O?

Accepted Answer

36.04 g

Question 8

The only substance that is 'truly neutral' is

Accepted Answer

distilled water

Question 9

A microwave transfers heat through

Accepted Answer

radiation

Question 10

Which form of heat transfer?

Accepted Answer

Radiation

Question 11

Which way does heat transfer?

Accepted Answer

from the hottest to the less hot

Question 12

What is the name of this chemical: HF

Accepted Answer

Hydrofluoric acid

Question 13

What is a solution that has an excess of H+(hydrogen) ions?

Accepted Answer

acid

Question 14

What kind of relationship takes place between VOLUME and TEMPERATURE of a gas when pressure is held constant?

Accepted Answer

DIRECT - when one factor increases, the other increases

Question 15

What is the name of this chemical: H2SO4?

Accepted Answer

sulfuric acid

Question 16

Energy that causes a transfer of heat between materials (creates the movement of matter of molecules)

Accepted Answer

thermal

Question 17

How many molecules are in one mole of gold?

Accepted Answer

6.02 X 1023

Question 18

If the VOLUME of a gas is DOUBLED while the temperature is held constant, what change would be observed in the pressure?

Accepted Answer

The pressure would be cut in half

Question 19

What kind of relationship takes place between VOLUME and PRESSURE of a gas when temperature is held constant?

Accepted Answer

INDIRECT - when one factor increases, the other decreases

Question 20

Stoichiometry deals with elements in compounds and with reactants and products in chemical reactions, focusing on

Accepted Answer

mass relationships.

Question 21

How many moles of water would be produced by the complete reaction of 6 moles of hydrogen?

Accepted Answer

6 mol

Question 22

What is the role of an indicator in a reaction?

Accepted Answer

To detect the end point of the titration

Question 23

Which of the following statements is most accurate?

Accepted Answer

All of the above.

Question 24

What happens to the volume of an inflated balloon when it is placed in a freezer?

Accepted Answer

Volume decreases

Question 25

Which of the following gives the correct chemical formula for the compound Dinitrogen Monoxide?

Accepted Answer

N2O

Question 26

You are heating a substance in a test tube. Always point the open end of the tube

Accepted Answer

Away from all people

Question 27

Which form of heat transfer?

Accepted Answer

Convection

Question 28

Which form has the most amount of energy?

Accepted Answer

gas

Question 29

How many moles of hydrogen would you need to react completely with 4 moles of oxygen?

Accepted Answer

8 mol

Question 30

Which form of heat transfer?

Accepted Answer

Conduction

SS Session 2 Rev

Questions 30

SS Session 2 Rev

Questions 30