Unit 4- Chemical Reactions

Question 1

What is the difference between a reactant and a product?

Answer 1

Reactants are the starting components and what goes into an experiment, and the product is what comes out

Question 2

What is a chemical change?

Answer 2

when one substance is turned into a new product (bubbles, odor, etc)

Question 3

What is a physical change?

Answer 3

a change affecting the form of a substance, but not its overall identity (color, freezing)

Question 4

Law of Conservation of Mass

Answer 4

in a chemical reaction, mass can neither be created nor destroyed (only transformed)

Question 5

What are the 5 types of chemical reactions?

Answer 5

synthesis, decomposition, single replacement, double replacement, and combustion

Question 6

What is a mole?

Answer 6

a group of atoms or molecules that are so small

Question 7

What is molar mass?

Answer 7

the mass of one mole

Question 8

What type of bond is the strongest?

Answer 8

Triple bond