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Alexus [3.1K]
3 years ago
9

When a gas is heated, the gas particles have more kinetic energy. Complete the following sentence: This means they move about mo

re and have more ______ with the sides of the container. This increases the pressure.
Chemistry
1 answer:
Volgvan3 years ago
3 0

Answer:

Contact

Explanation:

As the speed of the particles increases, they move around more, which means they hit the sides of the container more.

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Read 2 more answers
How much ch2o is needed to prepare 445 ml of a 2.65 m solution of ch2o?
worty [1.4K]

Answer: 35.4 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

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Molality = 2.65

n= moles of solute =?

 V_s = volume of solution in ml = 445 ml

Putting in the values we get:

2.65=\frac{n\times 1000}{445ml}

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Thus 35.4 grams of CH_2O is needed to prepare 445 ml of a 2.65 m solution of CH_2O.

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