11-3-23 quiz review

is a change in which one or more substances are converted into new substances

• chemical reaction

• reactants

• products

• chemical equation

The starting substances that react are called

• chemical reaction

• reactants

• products

• chemical equation

the new substances produced are called 

• chemical reaction

• reactants

• products

• chemical equation

is a way to describe a chemical reaction using chemical formulas and other symbols 

• chemical reaction

• reactants

• products

• chemical equation

If we have 10g of mercury (II) oxide and this decomposes into oxygen and mercury we would expect the mass of the products to be double that of the reactants 

• True

• False

Which side of a chemical equation is the product side?

• Left (before the yields sign)

• Right (after the yields sign)

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.

• Matter can only be lost in a chemical reaction.

• Matter can be gained and lost in a chemical reaction.

• Matter can only be gained in a chemical reaction.

Balance the equation by placing the correct coefficient in front of carbon dioxide  

Balance the equation by placing the correct coefficient in front of  Phosphoric acid

Balance the equation by placing the correct coefficient in front of oxygen molecules