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Lera25 [3.4K]
4 years ago
6

NAME:

Chemistry
1 answer:
Fofino [41]4 years ago
3 0
Hah what is this work
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How many molecules are there in 3.5 moles of carbon dioxide? A. 63.21 x 10^23 B. 21.07 x 10^23 C. 42.14 x 10^23 D. 6.02 x 10^23
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Answer:

B. 21.07 x 10²³ molecules

Explanation:

Avogadro's Number: 6.022 x 10²³

Step 1: Set up equation

3.5 mols CO_2(\frac{6.022(10^{23}) moleculesCO_2}{1 mol CO_2})

Step 2: Multiply and cancel out units

3.5(6.022 x 10²³) = 21.07 x 10²³ molecules CO₂

Step 3: Convert to proper scientific notation

≈ 2.11 x 10²³ molecules CO₂

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Explanation:

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When Lithium-7 loses 1 electron it
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If it loses an electron, it will become an ion.

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A ______ square is a diagram used to predict all possible allele combinations from a genetic ______. Using this diagram, the phe
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Explanation:

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