Formulas in Chemistry

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

• H₃SO₄
• HSO₄
• H₄S₃O
• H₂O

Tags

NGSS.MS-PS1-1

Which is the correct formula for:
one carbon (C)
two oxygen (O)

• CO₂
• CO
• C₂O
• 2CO

Tags

NGSS.MS-PS1-1

How many elements are in H₂O?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

The correct formula for magnesium oxide is 

• Mg₂O
• MgO
• MgO₂
• Mg₂O₃

LiBr is called

• lithium bromine
• lithium (I) bromine
• lithium bromide
• lithuim (I) bromide

CaI₂

• calcium diodide
• calcium iodide
• calcium iodate
• calcium iodine

Na ⁺  and  S ^-2

• Na₂S
• NaS₂
• Na₂S₂
• NaS

Al ⁺³  and  Cl^-

• AlCl₃
• Al₃Cl
• AlCl
• Cl₃Al

Tags

NGSS.MS-PS1-1

Al ⁺³  and  P ^-3

• Al₃P₃
• AlP
• P₃Al₃
• Pal

Tags

NGSS.HS-PS1-2

What is the correct formula for Sodium Oxide?

• NaO
• NaO₂
• Na₂O
• Na₂O₂