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bija089 [108]
2 years ago
5

The Law of Conservation of Matter describes how mass is not lost during a chemical reaction.

Chemistry
2 answers:
weeeeeb [17]2 years ago
7 0

False, it states that matter can be nether created nor destroyed

crimeas [40]2 years ago
4 0

Answer:

false

Explanation:

because it tells you the matter can't be created or destroyed.

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The exhaust gas from an automobile contains 3% by volume of carbon monoxide (CO). Express this concentration in mg/m3 at 25oC an
ser-zykov [4K]

Answer:

24540\frac{mg}{m^3}

Explanation:

Hello,

In this case, since the 3% by volume is represented as:

\frac{3L\ CO}{L\ gas}

By using the ideal gas equation we compute the density of CO:

\rho =\frac{MP}{RT} =\frac{28g/mol*1atm}{0.082\frac{atm*L}{mol*K}*298K}= 0.818g/L

Then we apply the conversion factors as follows:

=\frac{3L\ CO}{100L\ gas}*\frac{0.818g\ CO}{1L\ CO} *\frac{1000mg\ CO}{1g\ CO} *\frac{1000L\ gas}{1m^3\ gas} \\\\=24540\frac{mg}{m^3}

Regards.

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3 years ago
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Which statement describes a problem with the peer review process in scientific research?
Snezhnost [94]
Its A.It can sometimes reject important new ideas or novel techniques.<span>
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3 years ago
Which two chemical elements make up earths atmosphere
Lera25 [3.4K]

Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor.

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7 0
3 years ago
What is required for two atoms to share electrons equally in a chemical bond?
natulia [17]

Answer:

B

Explanation:

It said there "share electrons" so the two atoms should be non-metals

5 0
2 years ago
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