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vodka [1.7K]
3 years ago
7

1. Is the reaction between magnesium and oxygen in the air spontaneous?​

Chemistry
1 answer:
Vikki [24]3 years ago
4 0

Answer:

Once ignited, a ribbon of magnesium metal burns freely in air to form solid magnesium oxide in the form of a white powder. The reaction is plainly spontaneous even though ΔS is negative.

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tatiyna
Stratus clouds reside below the 6,000ft range.
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Cirrus clouds reside above the 20,000ft range.

Ordered from highest to lowest, the sequence of clouds will be:
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What is the total number of oxygen atoms represented in the formula na2c03.10h2o?
Wewaii [24]

As per the given chemical formula- Na2CO3.10H2O, one mole of the chemical compound contains 13 moles of oxygen atoms. Hence

Number of moles of oxygen atoms in one mole of Na2CO3.10H2O = 13

number of moles of oxygen atoms in 0.2 moles of Na2CO3.10H2O = 13 X 0.2 = 2.6

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number of atoms of oxygen in one mole of oxygen atom = 6.022 X 10^23

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 Best Answer:  <span>(a) 
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(b) 
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