Practice 3.5 Writing chemical formula

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the composition of a chemical compound using symbols for the elements and numbers to indicate the ratio of atoms.

Front

What does the subscript in a chemical formula indicate?

Back

The subscript in a chemical formula indicates the number of atoms of the element in one molecule of the compound.

Front

What is the chemical formula for Dinitrogen monoxide?

Back

Front

What is the chemical formula for Aluminum Sulfate?

Back

Front

What is the chemical formula for Barium Phosphide?

Back

Front

What is the chemical formula for Calcium Nitrate?

Back

Front

What is the chemical formula for Carbon Dioxide?

Back

Front

How do you determine the chemical formula for a compound?

Back

To determine the chemical formula, identify the elements present, their respective quantities, and use the appropriate subscripts to represent them.

Front

What is the significance of parentheses in chemical formulas?

Back

Parentheses in chemical formulas indicate that the enclosed group of atoms behaves as a single unit, especially in polyatomic ions.

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded, which can be treated as a single unit.