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Kazeer [188]
2 years ago
12

Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.

Chemistry
1 answer:
Nady [450]2 years ago
6 0

Answer:

option d oxygen nitrogen and carbon dioxide can be classified elements hope ur help

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30 treadmills to 36 elliptical machines
scoundrel [369]

Answer:

what? that's 66 total, 6 more elliptical machines, a 1 to 1.2 ratio

but I don't know what else you would mean

7 0
2 years ago
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Which pair of atoms is held together by a covalent bond HCl LiCl NaCl KCl​
Luda [366]

Answer:

HCL

Explanation:

Covalent bond are formed between non metals so look for the pair of non metal atoms and this would be hydrogen chloride (HCL)

8 0
3 years ago
How many liters of a 1.5 M solution can you make if you have .50 mol of KCl?
vaieri [72.5K]

Answer:

The answer to your question is 0.33 liters

Explanation:

Data

Volume = ?

Molarity = 1.5 M

number of moles = 0.5

Formula

Molarity = \frac{number of moles }{volume}

Solve for V

Volume = \frac{number of moles}{molarity}

Substitution

Volume = \frac{0.5}{1.5}

Simplification and result

       Volume = 0.33 l

7 0
3 years ago
Jan drew a diagram to compare centipedes and millipedes.
andre [41]

Answer:

BBB millipedes have two sets of legs on each segment.

Explanation:

4 0
2 years ago
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The compound methyl butanoate smells like apples. Its percent composition is 58.8% C, 9.9% H, and 31.4% O. What’s the empirical
blsea [12.9K]
To find the empirical formula you would first need to find the moles of each element:

58.8g/ 12.0g = 4.9 mol C

9.9g/ 1.0g = 9.9 mol H

31.4g/ 16.0g = 1.96 O

Then you divide by the smallest number of moles of each:

4.9/1.96 = 2.5

9.9/1.96 = 6

1.96/1.96 = 1

Since there is 2.5, you find the least number that makes each moles a whole number which is 2.

So the empirical formula is C5H12O2.
6 0
3 years ago
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