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2 years ago

HURRY FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry

2 answers:

miss Akunina [59]2 years ago

8 0

B. The sand increases friction by increasing roughness.

Nat2105 [25]2 years ago

5 0

Answer:

B. The sand increases friction by increasing roughness.

Explanation: bc

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A gas occupies 4.65 liters at 0.86 atm. What is the pressure if the volume becomes 15.27 L

Ivahew [28]

Answer:

Explanation:

4.65 * 0.86 * 3.82 = 15.27

6 0

2 years ago

Which would be the best way to represent the concentration of a 1. 75 M K2CrO4 solution? 1. 75% K2CrO4 [K2CrO4] (K2CrO4) K2CrO4,

tekilochka [14]

The amount of the solute present in the given solution is called the concentration. The best way to represent the concentration of the solution is $\rm [K_{2}CrO_{4}].$

<h3>What is molar concentration?</h3>

Molar concentration is the molarity of the solution that is the measure of the concentration of the solute dissolved in the solution.

The formula for calculating molar concentration is given as,

$\rm Molarity = \dfrac{\text{moles of solute}}{\text{Solution in L}}$

The concentration of any substance is represented in the square bracket like $\rm [X]$ or $\rm [K_{2}CrO_{4}].$

Therefore, option B. $\rm [K_{2}CrO_{4}]$ is the representation of the concentration.

Learn more about the molarity here:

brainly.com/question/1532164

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1 year ago

HELP PLEASE! :(

BabaBlast [244]

Answer:

Part 1: W = 116 Y = 163

Part 2: Since 232 is the mailing point of 2 kg then you would divide 232 by 2 to get the melting point for 1 kg, the same with Y.

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2 years ago

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Which two parts of the atom are found in nucleus?

faust18 [17]

Answer:

protons and neutrons are found in nucleus

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2 years ago

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On a potential energy diagram for the following processes, which of the following has an increase in entropy?

daser333 [38]

Hello,

I believe that your answer would be <span>B. water freezes
</span>Hope this helps

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2 years ago

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