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Ksju [112]
3 years ago
13

Giving brainiest to whoever answers correctly.

Chemistry
1 answer:
Digiron [165]3 years ago
5 0

Answer:250

Explanation:

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What group represents the alkaline, alkali, halogens, noble gases, and transition metals elements?
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Alkaline metal-group 1
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Add the reltive atomic mass of Ca and O which are 40 and 16 respectively after addition we get molecular mass of CaO which is 40+16=56 now divide atomic mass of O by molecular mass of CaO and multiply it with 100 as show n 16/56 *100=28.57%
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Answer:

1 mole of propane combines with 5 moles of oxygen gas to produce 3 mole of carbon dioxide and 4 moles of water.

Explanation:

The word equation for the combustion of propane can be obtained from the chemical equation;

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The word equation is therefore:

 1 mole of propane combines with 5 moles of oxygen gas to produce 3 mole of carbon dioxide and 4 moles of water.

For such a combustion reaction, carbon dioxide and water are produced in the process.

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