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3 years ago

7. If the atomic number of an element is 6 and its mass number is 14, how many

Chemistry

1 answer:

Jet001 [13]3 years ago

3 0

Answer:

14-6

so 8 is the answer because atomic number is number of protons and atomic mass is sum of protons and neutrons so to find the number of neutrons we will subtract proton number with the atomic mass.

Thanks

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ratelena [41]

19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change

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3 years ago

Fe2O3(s)+3C(s)→2Fe(s)+3CO(g) how many grams of CO are produced when 32.0 grams of C react

krok68 [10]

Answer:

74.6 g

Explanation:

The computation of the number of grams produced at the time when 32.0 grams of C react is shown below:

As we know that

But before that we need to find out the moles of c i.e carbon which is

$= \frac{Grams }{C\ molar\ mass}$

$= \frac{32\ grams}{12.0107 g/mol}$

= 2.66 mol

As we know that

1 mol of C produces 1 mol of CO

So, for 2.66 mol, the mass of CO is

$= 2.66 \times28.0101 g/mol$

= 74.6 g

Basically we applied the above equation so that we can reach to the answer

8 0

3 years ago

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monitta

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Natasha_Volkova [10]

B.false because water is not mineral

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I hope that this helps you and good luck!!

~Sara

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