Match the following using Rule 7

• The sum is equal to -1

• The sum of a neutral atom or molecule is equal to:

• The sum of this polyatomic ion is equal to -1

• CO

• 0 (zero)

• The sum of a polyatomic ion must be equal to:

• the charge of the ion

• NO₃^-

What is the total sum of the following compound K₃PO₄?

• +2

• -1

• 0

• +5

What is the sum of the compound CrO₄^2- ?

• +6

• 0

• -2

• +2

What is oxidation number of P in K₃PO₄?

• -2

• -1

• +1

• +5

What is the oxidation state of H in H₂?

• 0

• +1

• -1

• -2

What is the oxidation number of Na⁺

• +1

• -1

• +2

• 0

What is the oxidation state of Cr in CrO₄^2- ?

• +6

• +2

• -2

• +8

Tags

NGSS.HS-PS1-2