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Aleksandr-060686 [28]
2 years ago
14

20 POINTS AND BRAINLIEST

Chemistry
1 answer:
maksim [4K]2 years ago
7 0

Answer:

ceramic

Explanation:

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How many moles of gas are present in 1.13 L of gas at 2.09 atm and 291 K?
raketka [301]
<h2><u>Answer:</u></h2>

n = 0.0989 moles

<h2><u>Explanation:</u></h2>

n = PV / RT

P = 2.09atm

V = 1.13L

R = 0.08206

T = 291K

Plug the numbers in the equation.

n = (2.09atm)(1.13L) / (0.08206)(291K)

n = 0.0989 moles

3 0
3 years ago
above shows a balloon full of gas which has a volume of 120.0ml at 300.0k assuming pressure remains constant , what is the voume
trasher [3.6K]

128 ml  is the voume of the balloon if the temperature of the gas increases to 320.0k.

Explanation:

given that:

T1 (initial temperature) = 300K

V1 ( initial volume) =  120ml

T2 (final temperature) = 320 K

V2 (final volume) = ?

Pressure remained constant throughout the process.

From the equation

\frac{P1V1}{T1} = \frac{P2V2}{T2}

Since pressure is constant the equation will be:

\frac{V1}{T1} = \frac{V2}{T2}

V2 = \frac{V1 X T2}{T1}

    Putting the values in the above formula:

V2 = \frac{120 X 320}{300}

     = 128 ml

128 ml is the volume of the gas if temperature increases from 3OO K to 320k

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3 years ago
A soccer player kicks a ball 6.5 meters. How much time is needed for the ball to travel this distance
Ahat [919]
It is 67 I think it is
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How can the prevailing winds be different during an El Nino year?
ad-work [718]

Answer: During an El Nino year, weakening winds along the equator lead to warming water surface temperatures that lead to further weakening of the winds

3 0
3 years ago
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Give an example of a substance changing temperature and what happens to the motion of molecules as the temperature changes?
Svetradugi [14.3K]

Answer:

When water freezes, the molecules slow down until the water becomes a solid and the molecules stop moving.

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3 years ago
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