Chemical Formulas

How many different elements are in this chemical formula: C₂H₂ClK₃

• 6
• 8
• 2
• 4

Tags

NGSS.MS-PS1-1

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

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

Tags

NGSS.MS-PS1-1

The red numbers in the image below represent ________

• subscripts
• coefficients
• I don't know, and don't want to try
• None of the answers are correct

Tags

NGSS.MS-PS1-1

The blue numbers in the image below represent ________

• I don't know, and don't want to try
• coefficients
• subscripts
• none of the answers are correct

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1

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

• 1

• 4

• 2

• 7

Tags

NGSS.MS-PS1-1

Which of the following accurately describes the chemical formula of the molecule shown above?

• 3CH₈O

• C₃H₇O

• C₄H₈O₂

• C₃H₈O

Tags

NGSS.MS-PS1-1

How many Sodium (Na) are in 6NaCl?

• 1

• 12

• 6

• 7

Tags

NGSS.MS-PS1-1

How many O's are in Al₂SO₄?

• 4

• 12

• 7

• 24

Tags

NGSS.MS-PS1-1

If there is no subscript following a chemical symbol, how many atoms of that element are in the molecule?

• 0

• 2

• 1

• not enough information

Tags

NGSS.MS-PS1-1