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Iteru [2.4K]
3 years ago
10

Please help 10 points!!!

Chemistry
1 answer:
dalvyx [7]3 years ago
6 0
<span>the average atomic mass of this element is 39.95 u</span>
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Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simulta
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147.2g

Explanation:

The full solution can be found in the image attached. Graham's law was applied to the problem. The rate of diffusion of a gas is inversely proportional to its molar mass or vapour density. Molar mass= 2vapour density

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If the valency of oxygen is 2, derive the valencies of the other elements present in the following oxides. Na2O, ZnO , Al2O3 , M
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Answer:

1)Na2O

let the valency of Na is x

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7 0
3 years ago
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2 years ago
Your teacher asks you to design an experiment that shows how plants respond to changes in their environment. You have two identi
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Answer:

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3 years ago
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Which alcohol will undergo acid-catalyzed dehydration under the mildest conditions?
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