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Inga [223]
3 years ago
13

Please help me with 5 questions please that would be nice. Which pair of elements are the most common found in the sun? A. heliu

m and oxygen B. carbon and hydrogen C. hydrogen and helium D. helium and oxygen
Chemistry
2 answers:
Brums [2.3K]3 years ago
7 0
The answer is B. or at least that's what I say. O and are you aware that answer choices A. and D. has the same answer.
poizon [28]3 years ago
4 0
C. hydrogen and helium
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You are adding 35.0mL of this solution and the total volume of the mixture is 20.0mL + 35.0mL + 40.0mL = 95.0mL.

That means you are diluting your solution 95.0mL / 35.0mL = 2.714 times.

And the concentration of SCN⁻ is:

0.0800M / 2.714 =

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