3 years ago

Which is an example of an exothermic process?

Physics

1 answer:

Scorpion4ik [409]3 years ago

3 0

Answer:

an example of an exthermic process is combustion

Explanation:

combustion is like lighting a candle

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The element chlorine is found in nature as a molecule that can be represented as - A. Cl.

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A
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3 years ago

If you have 10.0 g of a substance that decays with a half-life of 14 days, then how much will you have after 42 days?

Nat2105 [25]

The formula for the mass that remains:
$m=m_0 \times (\frac{1}{2})^\frac{t}{T}$
m₀ - the initial mass, t - time, T - the half-life

$m_0=10 \ g \\
T=14 \ d \\
t=42 \ d \\ \\
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The answer is c. 1.25 g.

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2 years ago

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