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rusak2 [61]
4 years ago
14

Can someone check my answers? Will UpVote!<333

Chemistry
1 answer:
xxTIMURxx [149]4 years ago
3 0
Answers for what. Please ask an actual question next time. Do not answer a question if it isn't the correct answer.
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There are<br><br> molecules of carbon dioxide (CO2) in 102.5 grams.
Gekata [30.6K]

Answer:

1.403x10²⁴ molecules

Explanation:

In order to calculate how many molecules of CO₂ are there in 102.5 g of the compound, we first<u> convert grams to moles</u> using its <em>molar mass</em>:

  • 102.5 g ÷ 44 g/mol = 2.330 mol CO₂

Now we <u>convert moles into molecules </u>using <em>Avogadro's number</em>:

  • 2.330 mol * 6.023x10²³ molecules/mol = 1.403x10²⁴ molecules
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3 years ago
5.2 X 1026 molecules of CH4
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<h3 /><h3><u>Answer</u><u> </u><u>above</u><u> </u></h3>

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3 years ago
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When placed in a freezer , liquid water turns into ice . What best describes this change ?
GREYUIT [131]

Answer:

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Explanation:

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Mention the significance of dams and irrigation canals? ​
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<u>Significance</u><u> </u><u>of</u><u> </u><u>dams</u><u> </u><u>and</u><u> </u><u>canals</u><u> </u><u>are</u><u> </u><u>:</u><u>-</u><u> </u>

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3 years ago
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