Chemical Formulas Make up

Element or compound?
H₂O

• element
• compound

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

How many hydrogen atoms are in one water molecule? (water = H₂O)

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

The number of subscripts in a chemical formula tell us ______.

• the number of atoms of a specific element in the chemical formula

• the number of compounds in the chemical formula

• nothing

• the number of electrons of a specific element in the chemical formula

Tags

NGSS.MS-PS1-1

How many atoms IN TOTAL make up one molecule of glucose? (glucose = C₆H₁₂O₆₎

• 6

• 12

• 18

• 24

Tags

NGSS.MS-PS1-1

Which number is the coefficient? (2NH₃)

• There is no coefficient

• 2

• 3

• NH

How many atoms of sulfur are in each molecule of H₂SO₄?

• 1

• 4

• 2

• 7

Tags

NGSS.MS-PS1-1

Alanine is an amino acid with formula C₃H₇NO_2. How many atoms in all are in each molecule of alanine?

• 3

• 7

• 12

• 13

Tags

NGSS.MS-PS1-1

How many atoms of carbon are in a molecule of vinyl chloride (C₂H₃Cl)?

• 1

• 3

• 6

• 2

Tags

NGSS.MS-PS1-1

How many atoms of hydrogen are in a molecule of glucose (C₆H₁₂O₆)?

• 12

• 6

• 18

• 4

Tags

NGSS.MS-PS1-1