Quiz | Chemical Reactivity

1

What is the net ionic equation of: MnCl2 (aq) + (NH4)2CO3 (aq) → MnCO3 (s) + 2 NH4Cl (aq)?

Cl- (aq) + NH4+ (aq) → NH4Cl (aq)

Mn2+ (aq) + CO32- (aq) → MnCO3 (s)

MnCl2 (aq) + (NH4)2CO3 (aq) → 2 NH4Cl (aq)

Mn2+ (aq) + CO32- (aq) + 2 Cl- (aq) + 2 NH4+ (aq) → MnCO3 (s) + 2 Cl- (aq) + 2 NH4+ (aq)

2

What is a Bronsted base?

A H+ acceptor

A H+ donor

An electron pair acceptor

An electron pair donor

3

Which of the following compounds is not a Lewis base?

H2O

NH3

HO-

AlCl3

4

What is the oxidation number of the carbon atom in H2CO3?

0

+2

+4

+8

5

What is the reducing agent in the reaction: Fe2O3 + 3 CO → 2 Fe + 3 CO2?

CO

CO2

Fe

Fe2O3

6

What kind of reactions is: 2 Ag (s) + H2S (aq) → Ag2S (s) + H2 (g)?

Combination

Decomposition

Single replacement

Double replacement

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