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Juliette [100K]
3 years ago
5

How do you measure heat in high school chemistry​

Chemistry
1 answer:
FrozenT [24]3 years ago
8 0

Answer: Calories

Explanation: One calorie is the amount of energy required to raise one gram of water one degree Celsius

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The combustion of a fuel is generally favored because of the large increase in entropy due to
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the exothermic reaction.

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A student measures the mass of a substance as 1.7132 kg and it’s volume as 0.65 L. What is the density of the substance in g/mL?
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Answer:

\rho =2.6g/mL

Explanation:

Hello,

In this case, considering that the density is defined as:

\rho =\frac{m}{V}

Thus, since 1 kg equals 1000 g and 1 L equal 1000 mL, the required density in g/mL turns out:

\rho =\frac{1.7132kg}{0.65L}*\frac{1000g}{1kg}*\frac{1L}{1000mL}   \\\\\rho=2.6g/mL

Take into account that since 0.65 L has two significant figures, the result is also shown with two significant figures.

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Manganese atom has 30 neutrons and atomic number 25
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