Answer:
Product
Step-by-step explanation:
Chemical reactions are the interactions of two or more chemicals that result in the formation of new compounds. The compounds that react are referred to as REACTANTS, whereas the substances created as a result of the reaction are referred to as PRODUCTS.
In order to answer this question, oxygen and hydrogen mixture is ignited in a test tube as follows:
Hydrogen + Oxygen → Water + Energy
These chemicals getting mixed in this reaction (which is normally found on the left side of the equation) are hydrogen and oxygen. As a result, oxygen and hydrogen are REACTANTS. furthermore, water is generated as a byproduct of the reaction (H2O). WATER is one of the reaction's PRODUCTS.