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2. B) electrical chemical thermal mechanical
3. B) light, sound, and heat
4. A) light energy from the sun
Answer: B. CH₂OH
Explanation:
First off, we need a liquid solvent. Eliminate C and D.
Now, we have to consider polarity.
- Carbon tetrachloride is nonpolar, so sodium chloride will be insoluble.
- CH₂OH is polar, so sodium chloride will be soluble.
Answer:
Zn²⁺ gets reduced
Explanation:
An electrolytic cell runs in the opposite direction of a galvanic cell. Applying a current to the galvanic cell Zn | Zn²⁺ || Ni²⁺ | Ni would convert the Zn anode to a cathode and cause Zn²⁺ to be reduced.
