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kakasveta [241]
3 years ago
10

8.

Chemistry
1 answer:
White raven [17]3 years ago
6 0

Answer:

mixture of four compounds

mixture of two elements and two compounds

Explanation:

  1. it can be one of those
  2. can u tell me if its correct pls I'm studying this too

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How many molecules are in 48 grams of oxygen gas?
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Answer:

Since oxygen (O) has an atomic mass of 16 g, oxygen gas (O2) has a molecular mass of 2 x 16 = 32 g. We need to convert the given amount of oxygen gas to moles and this can be done by dividing the given mass by the molecular weight of oxygen gas. Hence, moles of oxygen gas = 48 g / 32 g/mole = 1.5 moles.

Explanation:

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Suppose 2.8 moles of methane are allowed to react with 5 moles of oxygen.
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