I thin that the answer to 3 is “hydroelectric”
Answer:
Option (A) Each Zn atom loses 2 electrons, and each Co2+ ion gains 2
Explanation:
To know the right answer to the question, let us observe the changes in the oxidation number of Zn and Co. This is illustrated below:
Zn(s) + Co2+(aq) → Zn2+(aq) + Co(s)
The oxidation number of Zn changes from 0 to +2 indicating that Zn has lose 2 electrons.
The oxidation number of Co changes from +2 to 0 indicating that Co has gain 2 electrons.
Therefore, option A is the correct answer.
<h3>
Answer:</h3>
PCl3: <em><u>COVALENT</u></em>
SiF4: <em><u>IONIC</u></em>
OF2: <em><u>COVALENT</u></em>
H2S: <em><u>COVALENT</u></em>
Ca3N2: <em><u>IONIC</u></em>
hope it helps (^^)
# Cary on learning
A is the correct answer i really hope this helps!