Question

Which substance loses mass when it is heated in air?

Answer 1

Answer:

If the product of the reaction is a gas, the substance will lose mass when it burns. This is because the oxygen atoms from the air combine with the atoms in the starting material and form a gas.

Answer 2

If the product of the reaction is a gas, the substance will lose mass when it burns. This is because the oxygen atoms from the air combine with the atoms in the starting material and form a gas.