Chemical Equations Explained

What information does a chemical equation provide?

• The temperature at which a reaction occurs.

• What substances are combined, their amounts, and what is produced.

• The speed of the chemical reaction.

• The color change during the reaction.

In a chemical equation, where are the reactants typically located?

• On the right side of the arrow.

• Below the arrow.

• On the left side of the arrow.

• Above the arrow.

What does a subscript number in a chemical formula represent?

• The total number of molecules in the reaction.

• The number of atoms of the element it follows.

• The charge of the element.

• The state of matter of the element.

What is required for a chemical equation to be considered balanced?

• The equation must have an equal number of molecules on both sides.

• The equation must have an equal number of atoms for each element on both sides.

• The equation must only contain elements, not compounds.

• The equation must show the state of matter for all substances.