Chemical energy is energy that is

Fragments of molecules that have at least one unpaired electron available for bonding are called

In a redox reaction, the substance that accepts electrons is said to be

Which of these is NOT a sign of a chemical reaction?

The substance that is formed in a chemical reaction is called the

Which of the following stores chemical energy?

Which of the following occurs in an endothermic reaction but not in an exothermic reaction?

A type of reaction that produces an increase in temperature is

A reaction in which the products contain more chemical energy than the reactants is

Which of the following are the products and reactants of a chemical reaction most likely to have in common? (which will be the same on both sides of the reaction?)

Which of the following occurs when gasoline is burned?

In a balanced chemical equation, the mass of the reactants is equal to the

What coefficient is missing in  $C_2H_4\ +\ \left(?\right)\ O_2\ \ \rightarrow\ \ 2CO_2\ \ +\ \ 2H_2O$  

Give the mole ratio for the following equation: $Zn\ +\ 2HCl\ \ \rightarrow\ \ ZnCl_2\ \ +\ \ H_2$