During this chemical reaction, the air around the reaction becomes B. colder. This is because the reaction absorbs thermal energy from the surroundings.
Read the passage about a chemical reaction that absorbs or releases thermal energy. Then, follow the instructions below.
The most common type of cement in the world is Portland cement, named after an area of England that has a lot of limestone. Limestone is made up mostly of calcium carbonate
(CaCO3)
. When calcium carbonate is heated, it breaks down into carbon dioxide
(CO2)
and calcium oxide
(CaO)
, the main ingredient in Portland cement. During this reaction, thermal energy is taken in from the surroundings and converted to chemical energy.
Complete the statement.
during this chemical reaction, the air around the reaction becomes
A.warmer
B.colder
1 answer
1 answer