Chemical Reactions Worksheet

Front

What type of chemical reaction can continue to occur once it has begun?

Back

Exothermic reaction

Front

Which type of chemical reaction releases or gives off energy?

Back

Exothermic reaction

Front

The reaction diagram where products are higher in energy than reactants represents what type of reaction?

Back

Endothermic reaction

Front

The reaction diagram where products are lower in energy than reactants represents what type of reaction?

Back

Exothermic reaction

Front

Which reaction needs a continuous supply of energy?

Back

Endothermic reaction

Front

Chemical reactions can release or store what kind of energy?

Back

Heat (thermal energy)

Front

What 4 things usually increase the rate of a reaction?

Back

Higher concentration, Higher temperature, Greater surface area, Catalyst

Front

Examples of an inhibitor?

Back

Preservatives in food, poisons, and certain medicines that slow reactions

Front

Which form of baking soda reacts fastest with vinegar: powder, small cube, or small crystal?

Back

Powder (because of greater surface area)

Front

What happens to the reaction rate when reactant particles collide more often?

Back

The reaction rate increases