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DerKrebs [107]
3 years ago
12

Is limestone a mixture or a pure substance​

Chemistry
1 answer:
grandymaker [24]3 years ago
5 0

Answer:

Limestone is a pure substance

Explanation:

It includes many elements and compounds that make it more difficult to break down Limestone.

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Describe the importance of the water cycle in the terms of;
nikitadnepr [17]

Answer:

ii.

Explanation:

Regulating weather patterns

3 0
2 years ago
The United States has about which percentage of the world's coal reserves?
aev [14]

Answer:

The United States leads the world with over 260 billion short tons of recoverable coal reserves—28% of total global reserves and 50% more than Russia, which possesses the world's second largest reserves. so the answer would be 28%

Explanation:

5 0
3 years ago
Read 2 more answers
The air all around us is a mixture of gasses containing nitrogen, oxygen, carbon dioxide, argon
KiRa [710]

Answer:

Total pressure = 4.57 atm

Explanation:

Given data:

Partial pressure of nitrogen = 1.3 atm

Partial pressure of oxygen = 1824 mmHg

Partial pressure of carbon dioxide = 247 torr

Partial pressure of argon = 0.015 atm

Partial pressure of water vapor = 53.69 kpa

Total pressure = ?

Solution:

First of all we convert the units other into atm.

Partial pressure of oxygen = 1824 mmHg / 760 = 2.4 atm

Partial pressure of carbon dioxide = 247 torr / 760 = 0.325 atm

Partial pressure of water vapor = 53.69 kpa / 101 = 0.53 atm

Total pressure = Partial pressure of N +  Partial pressure of O +  Partial pressure of CO₂ +  Partial pressure of Ar +  Partial pressure of water vapor

Total pressure = 1.3 atm + 2.4 atm + 0.325 atm + 0.015 atm + 0.53 atm

Total pressure = 4.57 atm

4 0
4 years ago
How might the hydrosphere affect the biosphere?
iragen [17]

THE ANSWER IS OPTION B.

B;SOIL FROM EROSION FILLS UP A POND

HOPE THIS HELP

\small \color{gold}{ \underline{ \tt \bold \pink{ \: by:MissS3xy}}}

4 0
3 years ago
Question 1
nordsb [41]

#1 B

#2 C

#3 B

#4 A.

I Just did this


8 0
3 years ago
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