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galina1969 [7]
3 years ago
11

SOMEONE HELP ME PLEASE ILL GIVE BRAINLY

Chemistry
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

true

Explanation:

just did it

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What is 21.97 to three significant figures
antiseptic1488 [7]

21.97

Sig Figs

   4

Decimals

   2

Scientific Notation

   2.197 × 101

Answer:

Explanation:

7 0
3 years ago
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What is the atomic mass of one mole of O?
ddd [48]
Oxygen's atomic weight is 16.00 amu<span>. 1 mole of oxygen is 6.02 x 10^23 atoms of oxygen 1 amu = 1.661 x 10^-24g. I hope this helps you. The correct answer for this question is "1.661 x 10^-24g".</span>
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3 years ago
2CO2 + 3H2O + 4Br2<br><br> C = <br><br> O = <br><br> H = <br><br> Br =
devlian [24]

Explanation:

2CO2 + 3H2O + 4Br2

C = 2

O = 5

H = 6

Br =8

8 0
3 years ago
L3-The Ecosystem of the Forest
o-na [289]
This is not a question kid
8 0
4 years ago
Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen,
Sati [7]

Answer:

The answer is: Law of multiple proportions        

Explanation:

The law of multiple proportions is a law of chemical combination given by Dalton in 1803.

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<u>Therefore, is an illustration of the law of the law of multiple proportions.</u>

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