Unit 3: Chemical Formulas and Equations Vocabulary

Front

What is a product in a chemical equation?

Back

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

Front

What do we call the one or two letters used to represent an element?

Back

Symbol(s) are the one or two letters used to represent an element.

Front

What is an element?

Back

An element is a substance consisting of a single atom.

Front

What is a precipitate?

Back

A precipitate is a solid that forms as a result of a chemical reaction and may appear cloudy.

Front

What does the arrow symbol in a chemical equation represent?

Back

The arrow symbol (yield) shows that a reaction has taken place, producing a new substance.

Front

What is a coefficient in a chemical formula?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules are present.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the composition of a substance using symbols and numbers.

Front

What is a reactant?

Back

A reactant is a substance that undergoes a chemical change in a reaction.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is a molecule?

Back

A molecule is the smallest unit of a chemical compound that retains its chemical properties.