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koban [17]
3 years ago
7

Which statement describes the phrase change that occurs when dry ice is placed in an open container at room temperature

Chemistry
1 answer:
mel-nik [20]3 years ago
5 0
<span>Solid form of carbon dioxide to a carbon dioxide gas.</span>
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How many grams of Co are needed to react with an excess of fe203 to produce 156.2 g FE? show your work.
Gekata [30.6K]

The reaction is given as

Fe2O3 (s)+ 3CO(g)--->3CO2(g)+ 2Fe(s)

No.of moles=mass in gram/molar mass

As for Fe mole =156.2g/55.847=2.7969~2.797

The ratio b/w CO and Fe is 3:2

Moles of CO needed= 2.797x3/2=4.1955

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MrMuchimi

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I think this is it

Water can have two different densities if it has substances dissolved in it. ... When liquid water freezes it becomes solid water or ice, which is less dense than liquid water. The fact that solid water (ice) is less dense than liquid water is evident in the way ice floats in a glass of water.

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