Oxidation and reduction

Oxidation is the _________ of electrons.

• loss

• sharing

• gain

• transfer

Another name for a "oxidation-reduction" reaction is

• Chemical reaction

• Redox reaction

• Neutralisation reaction

• Nuclear reaction

Tags

NGSS.HS-PS1-2

If an ion gains electrons during a chemical reaction, the ion was:

• oxidised

• reduced

• neutralised

• precipitated

Tags

NGSS.HS-PS1-2

In the following reaction, what is oxidising agent?
2Mg + O2 --> 2MgO

• oxygen

• magnesium

• magnesium oxide

In the following reaction, what is reducing agent?
Mg + FeSO4 --> Fe + MgSO4

• Fe

• Mg

• FeSO4

• MgSO4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Oxidation involves

• gaining oxygen, losing electrons

• losing oxygen, gaining electrons

• gaining oxygen, gaining electrons

• losing oxygen, losing electrons

Tags

NGSS.HS-PS1-2

Identify the substance that is reduced in the reaction between hydrogen and iron(II) oxide.

H₂ + FeO → H₂O + Fe

• Fe

• H₂

• H₂O

• FeO

Tags

NGSS.HS-PS1-2

Identify the substance that is oxidised in the reaction between carbon and zinc oxide.

C + 2ZnO → CO₂ + 2Zn

• C

• ZnO

• CO₂

• Zn

Tags

NGSS.HS-PS1-2

Identify the oxidising agent in the reaction between copper(II) oxide and hydrogen.

CuO + H₂ → Cu + H₂O

• Cu

• H₂

• CuO

• H₂O

Tags

NGSS.HS-PS1-2

If an atom loses electrons during a chemical reaction, the atom was:

• oxidised

• reduced

• neutralised

• precipitated

Tags

NGSS.HS-PS1-2