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Andrei [34K]
3 years ago
7

Name at least four other gases in the atmosphere besides oxygen and nitrogen

Chemistry
1 answer:
nikitadnepr [17]3 years ago
8 0
Carbon dioxide (CO2)
Argon (Ar)
Hydrogen (H)
Helium (He)
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Sentence for death rate
Sauron [17]
Death rate has been caused by mutliple things in soceity, 254,867 by abortion heart disease 143,385.
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Which of the following represents the molecules of one compound and<br> atoms of one element?
ankoles [38]

Answer:

i think its b.c but I'm not sure

3 0
3 years ago
If you obtain 3.0 grams of aspirin from an experiment that could make no more than 3.14 grams, what is the percent yield?
Masteriza [31]

Answer:

96%

Explanation:

To find the percent yield, we can use this equation

\frac{Actual}{Theoretical} *100

The actual yield of aspirin is 3.0 and the theoretical is 3.14 in this case, so just plug the numbers in.

\frac{3.0}{3.14} *100\\\\ =96

Thus the percent yield is 96%

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3 0
3 years ago
What is the total pressure in a container with 256 mm Hg of Oz, 198 mm Hg of He,
irina1246 [14]

Answer:

P(total pressure) = 504 mmHg = 504mm/760mm/atm = 0.663 atm

Explanation:

Apply Dalton's Law of Partial Pressures.

P(total) = ∑Partial Pressures = ∑(256mm + 198mm + 48mm) = 504 mmHg

P(total pressure) = 504 mmHg = 504mm/760mm/atm = 0.663 atm

7 0
3 years ago
when you decrease the distance between two magnets that are repelling, you increase the magnetic force. True or false?
kupik [55]

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