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slava [35]
4 years ago
5

Luster, conductivity, and malleability are physical properties of metals. What makes these properties different from chemical pr

operties?
A. Physical properties relate to elements rather than compounds.

B. Physical properties appear only after a chemical change occurs.

C. Physical properties can be observed without attempting to change the identity of the substance.

D. Physical properties describe elements in the solid state rather than in the liquid or gas state.
Chemistry
1 answer:
Alla [95]4 years ago
3 0

Answer:

C

Explanation:

A Is false because physical properties can relate to any chemical substance.

B Is false because physical properties are apparent wether a chemical change has occurred or not.

C Is correct because physical properties can be observed without making a chemical change to the substance, chemical properties cause physical properties but a chemical change is not needed to observe a physical property.

D Physical properties describe compounds in all phases of matter.

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Answer:

Conduction directly affects air temperature only a few centimeters into the atmosphere. During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction. At night, the ground cools and the heat flows from the warmer air directly above to the cooler ground via conduction.

Explanation:

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3 years ago
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4 years ago
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What is the molar mass of 81.50 g of gas
garik1379 [7]

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<h3>Further explanation</h3>

Given

mass = 81.5 g

P=1.75 atm

V=4.92 L

T=307 K

Required

molar mass

Solution

The gas equation can be written  

\large{\boxed{\bold{PV=nRT}}

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Input the value :

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PIT_PIT [208]

Answer:

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Explanation:

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