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meriva
2 years ago
10

What can u say about the sizes of all the atoms in a piece of carbon​

Chemistry
1 answer:
vlada-n [284]2 years ago
4 0

Answer:

all atoms must have 6 protons to be a carbon atom

Explanation:

brainliest?

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How much energy in joules is released when 18.5 grams of copper cools from 285 °C<br> down to 45 °C
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Answer: 1709.4 Joules

Explanation:

The quantity of Heat Energy (Q) released on cooling a heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since Q = ?

M = 18.5 grams

Recall that the specific heat capacity of copper C = 0.385 J/g.C

Φ = 285°C - 45°C = 240°C

Then, Q = MCΦ

Q = 18.5grams x 0.385 J/g.C x 240°C

Q = 1709.4 Joules

Thus, 1709.4 Joules is released when copper is cooled.

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