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kicyunya [14]
4 years ago
9

What is a chemical change?

Chemistry
2 answers:
cricket20 [7]4 years ago
6 0

Answer:

a

Explanation:

A.) Splitting water into hydrogen and oxygen

Mamont248 [21]4 years ago
5 0

Answer:

A

Explanation:

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<span>We can use the heat equation,
Q = mcΔT </span>

<span>

Where Q is the amount of energy transferred (J), m is the mass of the substance (kg), c is the specific heat (J g</span>⁻¹ °C⁻<span>¹) and ΔT is the temperature difference (°C).</span>

 

According to the given data,

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By applying the formula,

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Hence, specific heat of the given substance is </span>0.0936 J g⁻¹ °C⁻¹.

 


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How many molecules of water of water are in a 821.3 g sample
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