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kirill [66]
3 years ago
10

Find the number of moles in 3.62 x 1024 atoms of helium.

Chemistry
2 answers:
Makovka662 [10]3 years ago
8 0
3.62x10^24/ 6.02x10^23=  6.013 moles to 3dp
jasenka [17]3 years ago
3 0
Use the calculator it help you find the answer
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A mixture containing initially 3.90 mole of NO(g) and 0.88 mole of CO2(g) was allowed to react in a flask of volume 1.00 L at a
Ymorist [56]

Answer:

Equilibrium constant Kc for the reaction will be 1.722

Explanation:

O2(g)+NO(g)→CO(g)+ NO2(g)

0.88    3.9        ---         ---

0.88x   3.9-x     x           x

GIVEN:

0.88X-X= 0.11

⇒ X=0.77

CO2(g)+NO(g) → CO(g) + NO2(g)

0.88       3.9         ---          ---

0.88-x    3.9-x      x            x

=              3.13       0.77      0.77

=0.11

Kc = \frac{[CO] *[NO2]} {[CO2]*[NO]}

     ={{0.77}×0.77÷{{0.11×3.13}}

     = 1.722

6 0
4 years ago
If a hydrocarbon molecule contains a triple bond, its chemical name ends in
murzikaleks [220]
-yne. Hope this helps.
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3 years ago
Which substance can not be decomposed by a chemical change?
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The answer is (2) Copper. Because copper is consist of atom. If it is decomposed, the atom will be changed. While chemical change is just the break down and form of chemical bonds between atoms. 
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When a planet has the illusion of moving backwards or bouncing up and down it is exhibiting what?
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According to the article, puberty indicates the beginning of adolescence. How does nutrition influence the start of adolescence?
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Answer:

<h3>  adolescence begins according to your diet</h3>

Explanation                                                                                          <em>unhealthy diet</em>  brings about early or late commence  of adolescence especially  in girls                                                                                                                          

6 0
2 years ago
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