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Lerok [7]
3 years ago
14

How many molecules are there in 21.6 grams of CH4?

Chemistry
1 answer:
crimeas [40]3 years ago
7 0
See attachement for the answer to your question.

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A sample of a compound that contains only the elements C, H, and N is completely burned in O2 to produce 44.0 g of CO2, 45.0 g o
PolarNik [594]

Explanation:

what you have to do is to multiply the given grams with the ratio of grams of that certain element in it's full compound in order to isolate the compound and get the element.

because the question did not specify how many grams of NO2 is formed, we can assume that the mass is neglegible, thus 1 mole was assigned to Nitrogen.

3 0
3 years ago
Equation for hydrogen
Sergio [31]
The chemical equation for Hydrogen is just H
5 0
3 years ago
Give the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by the element. rb
devlian [24]

Actually Rb or Rubidium in zero state has the following electron configuration:

<span>1s22s2</span><span>2p6</span><span>3s2</span><span>3p63d10</span><span>4s2</span><span>4p65s1</span>

 

However we can see that the ion has a 1 positive charge, which means that it lacks 1 electron, therefore the answer from the choices is:

<span>d. rb+: 1s22s22p63s23p64s23d104p6</span>
3 0
3 years ago
What is the Sequence the different segments of the visible spectrum in order from shortest wavelength to
omeli [17]

Answer:The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.

Explanation:

5 0
2 years ago
The scientific study of the behavior of matter near 0 K is called
pshichka [43]
I think it is called condensated matter
8 0
3 years ago
Read 2 more answers
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