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2 years ago

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Chemistry

2 answers:

nexus9112 [7]2 years ago

7 0

Answer:

Alot of salt dissolved in warm water than in cold water

Explanation:

This is because cold water does not dissolve alot of salt and hot water dissolves alot of salt because of the kinetic energy acting on the liquid

ser-zykov [4K]2 years ago

4 0

Answer:

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Explanation:

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How equation can show physical states and reaction conditions

GarryVolchara [31]

Answer:

Explanation:

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2 years ago

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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

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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

How many outer planets are there?

Ivenika [448]

Answer:

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2 years ago

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3 years ago

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