4 test

1. What metal is capable of releasing hydrogen from dilute sulfuric acid?
2. What metal reacts with concentrated sulfuric acid to release hydrogen sulfide?
3. What metal is able to participate in the reaction:
MeAlCl3 → MeClxAl?

4. What metal will interact with water to release hydrogen gas?
5. What reaction products are formed during the interaction of copper with concentrated HNO3?

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