2 years ago

Which TWO scientist proposed an atomic model with a nucleus.

Chemistry

1 answer:

Zina [86]2 years ago

7 0

Answer:

A. Rutherford and Bohr

Explanation:

I think this is right but I am not sure it has been a while since i read about them

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The reaction of 5.40 g of carbon with excess O2 yields 13.6 g of CO2. What is the percent yield of this reaction?

vazorg [7]

C + O2= CO2
$n = \frac{m}{mw}$
$n = \frac{5.4}{12} \\ n = 0.45 \: mol \: of \: carbon$
$n = \frac{13.6}{12 + 16 \times 2} \\ n = \frac{13.6}{44} \\ n = 0.31 \: mol \: of \: carbon \: dioxide$
CO2 is limit
5.4-3.72= 1.68 g of C is excess
5.4 g = 100%
3.72 g = x
x=68.9 %

4 0

2 years ago

Can someone help me on this

xz_007 [3.2K]

155,500

I did this to the best of my ability. I have a hard time comprehending things sometimes so I’m so so so sorry if it’s wrong

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2 years ago

Is C2H6 empirical molecular or both

marshall27 [118]

Answer:

molecular

Explanation: