Answer:
Na+ is positively charged as it loses an electron
Cl- is negatively charged as it gains an electron
Answer: 6.88M
Explanation:
K= [N204]/[NO2]^2
[NO2]= 0.2M
K=172
[N204]=K * [N02]^2
172 *0.2^2
=6.88M
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1.2,dibromoethane is the sha'awa .