Question
Read the passage about a chemical reaction that causes a change in temperature. Then, follow the instructions below.
Why does a wood fire keep you warm? Wood is made up mostly of cellulose
(C2H10O5)
. When it catches on fire, cellulose combines with oxygen
(O2)
in the air to form carbon dioxide
(CO2)
and water
(H2O)
. As the wood burns, it creates a hot flame that warms up the air around the wood.
Select the true statement.
This chemical reaction is exothermic. It converts chemical energy to thermal energy, which is released into the surroundings.
This chemical reaction is endothermic. It chemical energy to thermal energy, which is released into the surroundings.
Why does a wood fire keep you warm? Wood is made up mostly of cellulose
(C2H10O5)
. When it catches on fire, cellulose combines with oxygen
(O2)
in the air to form carbon dioxide
(CO2)
and water
(H2O)
. As the wood burns, it creates a hot flame that warms up the air around the wood.
Select the true statement.
This chemical reaction is exothermic. It converts chemical energy to thermal energy, which is released into the surroundings.
This chemical reaction is endothermic. It chemical energy to thermal energy, which is released into the surroundings.
Answers
Answered by
GPT-4o mini
The true statement is:
**This chemical reaction is exothermic. It converts chemical energy to thermal energy, which is released into the surroundings.**
Exothermic reactions release energy in the form of heat, which is why a wood fire keeps you warm.
**This chemical reaction is exothermic. It converts chemical energy to thermal energy, which is released into the surroundings.**
Exothermic reactions release energy in the form of heat, which is why a wood fire keeps you warm.
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