Reactants and Products Flashcardizz

Front

What are reactants in a chemical reaction?

Back

Reactants are the substances that are present at the start of a chemical reaction and undergo change during the reaction.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

In the equation Na + Cl -> NaCl, identify the reactants.

Back

The reactants are Na (sodium) and Cl (chlorine).

Front

In the equation Na + Cl -> NaCl, identify the product.

Back

The product is NaCl (sodium chloride).

Front

What is a chemical reaction?

Back

A chemical reaction is a process in which substances (reactants) undergo a transformation to form new substances (products).

Front

Give an example of a chemical reaction.

Back

An example of a chemical reaction is the burning of a candle wick, which produces heat, light, and combustion products.

Front

What is the role of energy in a chemical reaction?

Back

Energy is required to break bonds in reactants and is released when new bonds form in products.

Front

What is the law of conservation of mass in relation to chemical reactions?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the conservation of mass.