Oxidation

In the reaction Zn + H₂O --> ZnO₂ + H₂
 which element, if any, is oxidized? 

• Zinc

• Hydrogen

• Oxygen

• None

What substance is oxidized in the following reaction?
4Fe + 3O₂ --> 2Fe₂O₃

• Iron

• Fluorine

• Oxygen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Substance that oxidizes another substance by accepting its electrons.

• reducing agent

• oxidation number

• combustion

• oxidizing agent

Another name for a "oxidation-reduction" reaction is

• chemical reaction

• neutralization reaction

• redox reaction

• nuclear reaction

Gaining oxygen is an example of...

• oxidation

• reduction

Tags

NGSS.HS-PS1-2

Substance that reduces another substance by losing electrons.

• reducing agent

• half-reaction

• electronegative atom

• oxidizing agent

The oxidation number of fluorine in a compound is always ___

• +1

• +2

• -2

• -1

The oxidation state of hydrogen in most of its compounds is +1 unless it is combined with a metal, in which case it is ___

What is the oxidation state of each element in the following molecule: K₃PO₄

• K:1+ P:4+ O:2-

• K:1+ P:5+ O:2+

• K:2+ P:5+ O:2-

• K:1+ P:5+ O:2-

What is the oxidation state of each element in the following anion: PO₄^3-

• P:4+ O:2-

• P:5+ O:2-

• P:5+ O:2+

• P:5+ O:1-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2