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Romashka-Z-Leto [24]
3 years ago
15

Which of these is a compound? carbon dioxide potassium salt water salad

Chemistry
2 answers:
xxMikexx [17]3 years ago
6 0

Answer:

potassium is a compound

Explanation:

hope it helps

Alona [7]3 years ago
5 0
Carbon dioxide is a compound.
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How many grams of magnesium are needed to completely react
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97.22 grams of magnesium is needed.

<u>Explanation:</u>

The molar ratio of Mg to O2  to make MgO is 2:1

Here, we have 2 moles of O2, therefore we need 4 moles of Mg.

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Therefore

4 moles of Mg = 4 \times 24.305 g

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Answer:

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