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kondaur [170]
3 years ago
14

Whenever anything moves, it has _____ energy. chemical heat mechanical

Chemistry
1 answer:
BaLLatris [955]3 years ago
5 0
Mechanical, because the other two make no sense and mechanical energy is the combination of kinetic and potential energy, or moving and still respectively.
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Pls help with these question because I don't understand what are pure substance and how to tell ​
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Answer:

i am pretty sure its A

Explanation:

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When a sample of liquid is heated, its thermal energy _______.
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Entropy.

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If a solution conducts electricity and has a pH value of 7 then it could be
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The solution that conducts electricity and has a pH value of 7 would most likely be a neutral solution. Water is among the best examples of a neutral solution. When the pH of a solution is considered to be lesser than 7, it is an acid, while if the pH is greater than 7, it is considered to be a basic solution.
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SOLVE The density of a gas is 0.68 g/mL. What amount of space would 23.8 g of this gas occupy?
Contact [7]

Answer:

<h2>The answer is 35 mL</h2>

Explanation:

Density of a substance can be found by using the formula

Density(\rho) =  \frac{mass}{volume}

From the question we are finding the amount of space the gas will occupy that's the volume of the gas

Making volume the subject we have

volume =  \frac{mass}{Density}

From the question

mass = 23.8 g/mL

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Substitute the values into the above formula and solve

That's

volume =  \frac{23.8}{0.68}

We have the final answer as

<h3>35 mL</h3>

Hope this helps you

6 0
3 years ago
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