Chemical Formulas

Front

What is the total number of atoms in H₂SO₄?

Back

7

Tags

NGSS.MS-PS1-1

Front

How should a chemical symbol with two letters be written?

Back

Au

Front

What does a subscript indicate in a chemical formula?

Back

The number of atoms of that element.

Tags

NGSS.MS-PS1-1

Front

Which of the following is NOT evidence of a chemical reaction: color change, gas production, melting to make a liquid, or temperature change?

Back

Melts to make a liquid

Tags

NGSS.MS-PS1-2

Front

How many different elements are present in H₂COCH₂?

Back

3

Tags

NGSS.MS-PS1-1

Front

What is the chemical formula for water?

Back

H₂O

Tags

NGSS.MS-PS1-1

Front

What is the chemical symbol for gold?

Back

Au

Front

What does the term 'molecular formula' refer to?

Back

A formula that shows the number and type of atoms in a molecule.

Tags

NGSS.MS-PS1-1

Front

What is the difference between a chemical formula and a molecular formula?

Back

A chemical formula can represent ionic compounds, while a molecular formula represents covalent compounds.

Front

What is the significance of the coefficients in a chemical equation?

Back

They indicate the number of molecules or moles of each reactant and product.

Tags

NGSS.MS-PS1-1