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Softa [21]
3 years ago
9

Velocity may be expressed in which I f the following units?

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
3 0

velocity is speed and direction so it should be expressed in mph f/s (feet per second) with a direction like North, right, left,

ex) 5mph south

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Digiron [165]

Answer:

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3 years ago
What is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at 850 mm Hg?
dangina [55]

Answer:

Pressure = 4313.43mmHg

Explanation:

P1 = ?

V1 = 0.335L

V2 = 1700mL =1700*10^-3L = 1.7L

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From Boyle's law, the volume of a fixed mass of gas is inversely proportional to its pressure provided that temperature remains constant.

P = k / v

K = pv. P1V1 = P2V2 = P3V3 =........=PnVn

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The pressure of the gas was 4313.43mmHg

7 0
3 years ago
An atom has 5 protons, 4 electrons, and 5 neutrons. Which
Likurg_2 [28]

Answer:

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Explanation:

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3 0
3 years ago
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To prevent poisoning, what three items should NEVER be taken into the lab?
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7 0
3 years ago
What is the density (g / mL) of a substance that has a mass of 8.11 g and, when placed into a graduated cylinder, causes the wat
MAXImum [283]

Answer:

<h3>The answer is 0.42 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 8.11 g

volume = final volume of water - initial volume of water

volume = 44.72 - 25.26 = 19.46 mL

We have

density =  \frac{8.11}{19.46}  \\  = 0.416752312...

We have the final answer as

<h3>0.42 g/mL</h3>

Hope this helps you

8 0
3 years ago
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