OXIDATION #S

What is the charge for an ion in group 1?

• +1
• -7
• -1
• +7

Tags

NGSS.HS-PS1-1

What is the charge of the iron(III) ion?

• +3
• -3
• +2
• +1

Tags

NGSS.HS-PS1-1

Why are ions formed?

• To make our lives difficult

• Because atoms want 8 valence electrons

• Because atoms have the same number of protons and electrons

• Because atoms gained neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Cations are

• positive
• negative
• on the right side of the periodi table.
• nonmetals

Tags

NGSS.HS-PS1-1

What is the charge of the mercury(II) ion?

• +11
• +2
• -2
• -11

Tags

NGSS.HS-PS1-1

What is oxidation number of H in H₂O?

• 0
• -2
• -1
• +1

Tags

NGSS.HS-PS1-1

What is oxidation number of Cr in (Cr₂O₇)^2- ?

• -2

• +2

• +6

• +12

What is oxidation number of P in K₃PO₄?

• +1
• +5
• -2
• 0

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of H in CaH₂?

• +1
• -1
• 0
• +2

Tags

NGSS.HS-PS1-1

What is oxidation number of Fe in FeO ?

• +2
• -2
• 0
• +1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2