Review for Chemical Reactions Test CP

Front

What is the coefficient needed to balance the equation NH₃ + H₂SO₄ → (NH₄)₂SO₄?

Back

2

Front

What are the collisions that lead to a chemical reaction called?

Back

Effective collisions

Front

Which has more surface area: large chunks of chalk, a cube of sugar, powdered sugar, or small chunks of sugar?

Back

Powdered sugar

Front

What does the symbol Δ represent in chemistry?

Back

Change in heat

Front

What factors affect the rate of reaction?

Back

Temperature, Pressure, Concentration, and Surface area

Front

Define a chemical reaction.

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

What role does temperature play in chemical reactions?

Back

Increasing temperature generally increases the rate of reaction.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.