7.2 Review

Front

What are the products of the chemical reaction when methane (CH4) burns in oxygen?

Back

Carbon Dioxide (CO2) and Water (2H2O)

Front

What type of heat transfer occurs when you touch a hot curling iron?

Back

Conduction

Front

What is a chemical reaction that absorbs heat from its surroundings called?

Back

Endothermic

Front

What type of change occurs when a candle melts?

Back

Physical Change

Front

What is the reason the upstairs is warmer in the winter?

Back

Convection

Front

What is the process called when heat is transferred through the movement of fluids?

Back

Convection

Front

What is the term for a chemical reaction that releases heat?

Back

Exothermic

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is the main gas produced when fossil fuels are burned?

Back

Carbon Dioxide (CO2)

Front

What is the term for the energy required to start a chemical reaction?

Back

Activation Energy