Oxidation states

What charge would a sulfur ion have?

• -6
• -16
• +2
• -2

Tags

NGSS.HS-PS1-1

Do the elements in group 13 form cations or anion?

• Cations
• Anions

Ions from the halogen group form what oxidation state?

• +1
• -1
• -7
• +7

What charge would a hydrogen ion have?

• +1
• -1
• +2
• -2

What charge would a barium ion have?

• +3
• -2
• +2
• +1

How many electrons does a copper ion, Cu⁺², have?

• 29
• 31
• 27
• 2

What is oxidation number of H in H₂O?

• 0
• -2
• -1
• +1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of Cr in Cr₂O_7^2-?

• -2
• +2
• +6
• +12

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of H in CaH₂?

• +1
• -1
• 0
• +2

What is oxidation number of Fe in FeO ?

• +2
• -2
• 0
• +1

Tags

NGSS.HS-PS1-7