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zysi [14]
2 years ago
14

Methane (CH4) combines with oxygen gas (O2) to form carbon dioxide

Chemistry
1 answer:
aivan3 [116]2 years ago
3 0

Explanation:

this is the balanced equation

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2. Using the following data, calculate the average atomic mass of magnesium (give your answer to the nearest
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24.32

Explanation:

From the question given above, the following data were obtained:

Isotope A:

Mass of A = 24

Abundance (A%) = 78.70%

Isotope B

Mass of B = 25

Abundance (B%) = 10.13%

Isotope C:

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Average atomic mass of Mg =..?

The average atomic mass of Mg can be obtained as illustrated below:

Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

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= 18.888 + 2.5325 + 2.9042

= 24.3247 ≈ 24.32

Therefore, the average atomic mass of magnesium (Mg) is 24.32

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