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kenny6666 [7]
3 years ago
11

1) List the number of protons, neutrons, and electrons in Carbon-13.

Chemistry
1 answer:
ser-zykov [4K]3 years ago
4 0
1) Carbon-13: 
                      Proton-6     Neutron-7       Electron-6

2)Atomic mass of element X:
   (55*10+56*20+57*70)/100=56.6
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Explanation:

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6 0
3 years ago
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6 0
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The pressure is recorded as 738 mmHg.Convert this measurement to atmosphere (atm)
garri49 [273]
As we know that 760 mmHg is equal to 1 atm.

So,
If 760 mmHg is equal to   =   1 atm
Then
738 mmHg will be equal to   =   X atm

Solving for X,
                                X   =   (738 mmHg × 1 atm) ÷ 760 mmHg

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Result:
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4 0
3 years ago
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5 0
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Explanation:

Hope this helped!

7 0
3 years ago
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