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Lena [83]
2 years ago
9

A machine

Chemistry
2 answers:
rosijanka [135]2 years ago
4 0

i believe the answer is A (((:

AlexFokin [52]2 years ago
4 0

The answer is D)

A machine can do all of these things

Depending on what kind of machine it is, it can change direction and shapes of objects. Machines can usually do these things much faster than a person can.

I hope this Helped :D

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Cu2 -> Cu2+ is it getting oxidized?
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H₂S + 2NaOH → Na₂S + 2H₂O

The oxidation sate of sulfur is -2 on reactant side and in product side it is also -2 so it neither oxidized nor reduced.

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