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Olenka [21]
3 years ago
9

Which of the following substances heats the fastest?

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

Answer:

Zinc

Explanation:

The specific heat capacity can be described as the amount of heat required to raise the temperature of a substance by one degrees Celsius. It is represented by C or S. The greater the carrying capacity of a substance, the more will be the heat required for that substance.

As we can see in the information given in the question, the specific heat capacity of zinc is the lowest as compared to steel, water and aluminium. Hence, zinc is the correct option.

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A chemist heats a sample of hydrated lithium nitrate which weighs 170 grams and finds, after heating that it weighs 95.3 grams.
Agata [3.3K]

Explanation:

170-95.3 = 74.7

that means

74.7% of water in hydrate

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2 years ago
Which of the following is not a required characteristic for a living organism?
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Answer:

B

Explanation:

living things are not required to move

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2 years ago
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What is the independent variable, and the dependent variable in this?
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The salt and sugar as well as the baby power and granulated sugar are the independent variables.

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3 years ago
A solution contains 15.27 grams of NaCl in 0.670 kg water at 25 °C. What is the vapor pressure of the solution?
Anvisha [2.4K]

Answer:

The vapor pressure of the solution is 23.636 torr

Explanation:

P_{solution} = X_{solvent}*P_{solvent}

Where;

P_{solution is the vapor pressure of the solution

X_{solvent is the mole fraction of the solvent

P_{solvent is the vapor pressure of the pure solvent

Thus,

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0.67 kg of water =  [(0.67*1000)/(18)]moles = 37.222 moles of H₂O

Mole fraction of solvent (water) = (number of moles of water)/(total number of moles present in solution)

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