EEE

Question 1

Aqueous cobalt (II) sulfate reacts with concentrated hydrochloric acid
State the transition element species formed.
State the type of reaction.

Answer 1

1) CoCl4^2-

2) ligand substitution

Question 2

Aqueous cobalt (II) sulfate reacts with aqueous sodium hydroxide. 
State the formula of the transition element species formed.
State the type of reaction

Answer 2

1) Co(OH)2

2) precipitation