3 years ago

What percentage of the earth is water?

Chemistry

2 answers:

OleMash [197]3 years ago

4 0

Answer:

approximately 71%

olya-2409 [2.1K]3 years ago

3 0

Answer:71%

Explanation:

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The atmospheric pressure on the surface of Venus is 6.84X10^4. Calculate the atmospheric pressure in atm and torr. Round each of

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Answer:

0.675 atm

513 Torr

Explanation:

Given is that, the atmospheric pressure on the surface of Venus is

6.84 X 10⁴ Pa.

1 atm (atmospheric pressure) is equal to 101325 pascal (Pa).

To convert divide the pressure value by 101325.

Pressure in atm = $\frac{6.84 \times 10^{4} }{101325}$

= 0.675055 atm

Rounding it off to 3 significant digits: 0.675 atm

Now, one Torr is 133.322 Pa. For conversion, divide the pressure value by 133.322.

Pressure in Torr = $\frac{6.84 \times 10^{4} }{133.322}$

=513.04219 Torr

Rounding it off to 3 significant digits: 513 Torr

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3 years ago

Briefly explain the difference between hard water and soft water.

melisa1 [442]

Answer:

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3 years ago

What is the molarity of a solution prepared by diluting 43.72 ml of 1.005 M aqueous K2CR2O7 to 500 ml

UNO [17]

Answer:

43.72

Explanation:

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3 years ago

Describe the modem system of cassification,

yaroslaw [1]

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Explanation:

The scientific name given to an organism is based on binomial nomenclature.

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What is the only difference between an atom and an ion?

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An ion is partials and an atom is a base

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