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3 years ago

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During which intervals is potential energy decreasing and average kinetic energy remaining constant?

1 answer:

Sholpan [36]3 years ago

7 0

To the picture I will be attaching, the intervals in which the potential energy decrease and the average kinetic energy will remain constant is on the interval or DE and BC, so the answer in this is the interval in which DE and BC is at constant because they are still straight line.

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In the compound cah2 calcium has an oxidation number of 2+ and hydrogen has an oxidation number of

sesenic [268]

The oxidation number of H is -1.

Sum of the oxidation numbers in each element = charge of the complex

CaH₂ has 1 Ca atom and 2H atoms. The charge of the complex is zero. Let’s say Oxidation number of H is "a".

Then,

<span> (+2) + 2 x a = 0 </span>

<span> +2 + 2a = 0</span>

2a = -2

a = -1

Hence, the oxidation number of Hydrogen atom in CaH₂ is -1

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2 years ago

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kari74 [83]

Answer:

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2 years ago

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Fed [463]

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<h3>Electrochemical equations</h3>

Zn reacts with Cu solution according to the following equation:

$Zn + Cu^{2+} ---- > Cu + Zn^{2+}$

In the reaction, $Cu^{2+}$ is reduced according to the following: $Cu^{2+} + 2 e^- -- > Cu$

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More oxidation-reduction equations can be found here: brainly.com/question/13699873

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1 year ago

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Virty [35]

Answer:

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Answer:

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Explanation:

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