Chem Chapter 8 Test Review

The substances listed on the right side of a chemical equation are the

• Yields
• Reactants
• Products
• Precipitates

CaCO₃ represents a chemical

• Symbol
• Formula
• Subscript
• Reaction

The substances listed on the left side of a chemical equation are the

• Products
• Coefficients
• Precipitates
• Reactants

In chemical reactions, what does the principle of conservation of mass mean?

• Matter or is not created or destroyed under normal conditions.

• The total mass of the reactants is greater than the total mass of the products.

• The total mass of the reactants is less than the total mass of the products.

• Matter is not changed.

A solid that is produced as a result of a chemical reaction in solution & separates from solution

• reactant

• yield

• precipitate

• coefficient

A small whole number that appears in front of a formula in a chemical equation

• coefficient

• precipitate

• subscript

Which is NOT an indicator of a chemical change?

• Color Change

• Precipitate formed

• Production of Gas (Bubbles)

• Change of state

H_2, F_2, O₂, I₂, Cl₂, Br₂, N₂ are all

• polyatomic ions

• diatomic molecules

• noble gases

• transition metals

Elements that exist in nature in pairs; bonded with another like atom

• diatomic molecules

• elements

• ions

• isotopes

What kind of reaction is this:
2H₂O₂ →2 H₂O + O₂

• Synthesis
• Decomposition
• Single Replacement 
• Combustion