Review: LOCOM in Reactions (Honors)

Front

What does the subscript in a chemical formula tell you?

Back

The number of atoms of an element.

Front

Which of the following best describes the conservation of matter in a chemical reaction?

Back

Matter is conserved; the total mass of reactants equals the total mass of products.

Front

What is the yield of a chemical reaction?

Back

Represents Equals or transfer. The actual amount of product formed and divides the reactants and products.

Front

How would you evaluate the claim that the mass of sodium chloride produced is less than the mass of sodium and chlorine used?

Back

The claim is incorrect because mass is conserved in chemical reactions.

Front

Back

14.

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving the breaking and forming of bonds.

Front

Define the law of conservation of mass.

Back

In a closed system, mass is neither created nor destroyed during a chemical reaction.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A substance that is formed as a result of a chemical reaction.

Front

What does balancing a chemical equation ensure?

Back

It ensures that the number of atoms for each element is the same on both sides of the equation.