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melomori [17]
3 years ago
13

A physical change is a change (4 points) in the properties of matter that does not change the identity of the substance in the p

roperties of matter that also changes the identity of the substance in the chemical makeup of matter of matter from one compound to another
Chemistry
1 answer:
goblinko [34]3 years ago
4 0
Yes a physical change can do that. A chemical change is like a burning candal
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22.4 L is the volume of any gas regardless of atmospheric conditions.<br><br> O True<br><br> O False
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This is false. One mole of a gas occupies 22.4 L at STP, which is taken to be 0°C (273 K) and 1 atm. If atmospheric conditions depart from these values, this assumption cannot be used.
8 0
3 years ago
the volume of a gas is 550 ml at 960 mm hg and 200.0°C. What volume would the pressure of the gas be 830 mm Hg if the temperatur
gavmur [86]

Answer:

V₂ = 568.9 mL

Explanation:

Given data:

Volume of gas = 550 mL

Pressure of a gas = 960 mmHg

Temperature = 200.0°C ( 200+273 = 473 K)

Final volume = ?

Final pressure = 830 mmHg

Final temperature = 150°C (150+273 = 423 K)

Solution:

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

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V₂ = 223344000 mL / 392590

V₂ = 568.9 mL

8 0
3 years ago
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