SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All of the answers posted is correct.
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The cause of a chemical reaction
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The substance you start with and undergoes change in a reaction
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The substance you end up with in a chemical reaction
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Detailed explanation-1: -Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.
Detailed explanation-2: -Substances that undergo the chemical changes are called reactants. The new substances that form are the products.
Detailed explanation-3: -The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products. A product is a substance that is present at the end of a chemical reaction.
Detailed explanation-4: -When a candle burns, the reactants are fuel (the candlewick and wax) and oxygen (in the air). The products are carbon dioxide gas and water vapor.