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Darina [25.2K]
3 years ago
8

I will mark brainliest What are dams? How do they help conserve water?

Chemistry
1 answer:
Gre4nikov [31]3 years ago
7 0

Answer: what are dams?

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation.

how does it conserve water?

well there could be many ways it can conserve water but I will tell you the most important.

When the water level increases they open gates in order to send out water. These dams allow us to store and not to drain water into oceans soon. A DAM is a barrier constructed to hold back water and raise its level

Explanation:

I hope this helps plz click the heart and mark me braines!

have a wonderful day!

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If we have equal masses of copper at 80oC and water at 20oC and we put them together, what is the final temperature?
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Answer:

The final temperature will be close to 20°C

Explanation:

First of all, the resulting temperature of the mix can't be higher than the hot substance's (80°C) or lower than the cold one's (20°C). So options d) and e) are imposible.

Now, due to the high heat capacity of water (4,1813 J/mol*K) it can absorb a huge amount of heat without having a great increment in its temperature. On the other hand, copper have a small heat capacity (0,385 J/mol*K)in comparison.

In conclusion, the copper will release its heat decreasing importantly its temperature and the water will absorb that heat resulting in a small increment of temperature. So the final temperature will be close to 20°C

<u>This analysis can be done because we have equal masses of both substances. </u>

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brainliest?

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