2 years ago

Which of the following statements is true regarding scientific hypotheses?

Chemistry

1 answer:

zzz [600]2 years ago

6 0

C because it makes the most sense

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Is baking soda a fine powder or is it coarse

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Baking soda is a fine powder because when you touch it the baking soda is very soft

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3 years ago

If you stay at 90 degrees Celsius and a gas in a liquid solution has a pressure of 2 atm, what solubility should it have if it h

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2 years ago

A gas has a volume of 56.3L when its temperature is 280 K. What will volume be at 220K?

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3 years ago

A closed container holds 2.0 moles of CO2 gas at STP. How many moles of oxygen can be placed in a container of the same size at

PilotLPTM [1.2K]

Answer: 2 moles

Explanation:

STP is Standard Temperature and Pressure. That means the pressure is 1.00 atm and the temperature is 273K. Since the oxygen is placed in the same container, we can use Ideal Gas Law to figure out what container the CO₂ used.

Ideal Gas Law: PV=nRT

P=1.00 atm

n=moles

R=0.08206 Latm/Kmol

T=273K

CO₂

$V=\frac{nRT}{P}$

$V=\frac{(2.0 mol)(0.08206Latm/Kmol)(273K)}{1.00atm}$

$V=44.8L$

Since we know that CO₂ has a 44.8 L container, we can use that to find the moles of oxygen.

$n=\frac{PV}{RT}$

$n=\frac{(1.00atm)(44.8L)}{(0.08206Latm/Kmol)(273K)}$

$n=1.99=2mol$

There are 2 mol of oxygen.

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3 years ago

Okay #PlatoFam. I need help!!!

Vikki [24]

-2 for O
-1 for F
0 for N2
+1 for Li
+3 for Fe

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3 years ago

Read 2 more answers