Chemical Reactions Quiz

• Chemical reactions only occur in living organisms.
• Chemical reactions always produce heat.
• Chemical reactions can only happen at high temperatures.
• Chemical reactions involve the formation of new substances. (correct)

• The substance that is formed as a result of the reaction.
• The substance that remains unchanged during the reaction.
• The substance that is consumed during the reaction. (correct)
• The substance that speeds up the reaction.

• To increase the temperature at which the reaction occurs.
• To speed up the rate of the reaction without being consumed. (correct)
• To slow down the rate of the reaction.
• To provide energy for the reaction.