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Kay [80]
2 years ago
8

A mole of a chemical element contains approximately 6.02 × 1023 atoms. Match the following moles of elements with the approximat

e number of atoms in them.
Tiles
3.2 × 104 moles of hydrogen
1.5 × 10-7 moles of helium
4.5 moles of nitrogen
8.1 × 10-10 moles of xenon
Pairs
Number of Atoms Number of Moles
9.03 × 1016
arrowBoth
2.709 × 1024
arrowBoth
1.9264 × 1028
arrowBoth
4.8762 × 1014
arrowBoth
Mathematics
2 answers:
olchik [2.2K]2 years ago
6 0

Answer:

9.03 × 1016 -> 1.5 × 10-7 moles of helium

2.709 × 1024 -> 4.5 moles of nitrogen

1.9264 × 1028 -> 3.2 × 104 moles of hydrogen

4.8762 × 1014 -> 8.1 × 10-10 moles of xenon

Step-by-step explanation:

edmentum answer :)

hope this helps

makvit [3.9K]2 years ago
3 0

Answer:

9.03x10^16---------1.5x10^-7 helium

2.709x10^24-------4.5 nitrogen

1.9264x10^28-------3.2x10^4 hydrogen

4.8782x10^14--------8.1x10^-10 xenon

Step-by-step explanation: i got it right PERIOD PURRRRR

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A right triangle has a hypotenuse of length 99 inches. if one angle is 34 degrees34°​, find the length of each leg.
Andreyy89
Sine (34) = opposite / 99
opposite side = .55919 * 99
opposite side = <span> <span> <span> 55.35981 </span> </span> </span>

Adjacent side² = 99² - 55.35981²
Adjacent side² = <span> <span> </span></span> <span> <span> <span> 9,801  </span> </span> </span> -<span><span><span>3,064.7085632361 </span> </span> </span>
<span><span><span>Adjacent side² = 6,736.29 </span> </span> </span>
Adjacent side = <span> <span> <span> 82.0749

</span></span></span>


5 0
3 years ago
1
velikii [3]
<h3>Answer: B) Experiment</h3>

Reason:

Whenever you have two groups like this, one labeled the treatment group and the other the control group, we have an experiment gong on.

The treatment group gets the actual medication that is being tested. The control group gets a fake medication, aka placebo. Usually a placebo is meant for humans because it's more of a psychological factor. With cats, it likely won't affect them. However, such practices of having two groups like this is standard no matter what group of subjects you're testing.

The idea is that if the treatment group has better results compared to the placebo group, then it's likely the medication works.

4 0
2 years ago
alexandera worked 5 hours one day 4.5 hours another and 2.5 another. Find the mean average deviation.
lara31 [8.8K]

Answer:

1.16667

Step-by-step explanation:

3 0
4 years ago
Lesson 4 Solving One Variable Equation
aleksandr82 [10.1K]

Answer:

b = -³¹⁄₃

Step-by-step explanation:

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3b + 15 = -26 - 20

3b + 15 = -46

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b = -³¹⁄₃

3 0
3 years ago
3. Given ABCD ≅ FGHJ and mC = 9x - 7, mH = 5x + 13, find the value of x and the measures of angle C and angle H. Show all work
Bas_tet [7]
Since congruence and similarity for polygons is posted in a specific order, we know that angle A=angle F, side A=side F, die B=side G, and so on. Therefore, we have that angle C=angle H = 9x-7=5x+13. Subtracting 5x from both sides to separate the x using the subtraction property of equality, we get 4x-7=13. Next, we can add 7 to both sides to get 4x=20, and divide both sides by 4 to isolate the x and get x=5. Plugging that into angle C or angle H, we get that 9x-7=9*5-7=45-7=38=5*5+13.

Feel free to ask further questions!
5 0
3 years ago
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