3 years ago

1. Is air a mixture or a compound? mixture

2 answers:

8 0

Its mixture goodluck :)

7 0

The correct answer is A. Mixture

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VMariaS [17]

Answer: The pressure 12.2 psi is expressed in millimeters of mercury (mm Hg) as 630.9221 mm Hg.

Explanation:

Given: Pressure = 12.2 psi

According to the standard conversion of units, 14.7 psi = 1 atm = 760mmHg.

Therefore, 1 psi equal to how many mm Hg is calculated as follows.

$14.7 psi = 760 mm Hg\\1 psi = \frac{760}{14.7} mm Hg\\= 51.7149 mm Hg$

Hence, 12.2 psi will be converted into mm Hg as follows.

$1 psi = 51.7149 mm Hg\\12.2 psi = 12.2 psi \times \frac{51.7149 mm Hg}{1 psi}\\= 630.9221 mm Hg$

Thus, we can conclude that the pressure 12.2 psi is expressed in millimeters of mercury (mm Hg) as 630.9221 mm Hg.

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The symbol for copper is CU, which means copper cuprum, the Latin word for copper.

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Alenkinab [10]

D or C I think but ye

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sergejj [24]

Answer:

3 is the answer

Explanation:

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stich3 [128]

20000 centimeters because 1 dekameter is 1000 centimeters

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