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USPshnik [31]
3 years ago
5

If 50g of calcium carbonate is heated, what mass of calcium oxide is formed

Chemistry
1 answer:
tresset_1 [31]3 years ago
5 0

Answer:

22 g of CO2 are obtained from decomposition of 50 g of CaCO3

Explanation:

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Two liters of hydrogen gas are stored at a
Tju [1.3M]

Answer:

the volume will expand

Explanation:

gas under pressure contracts, and expands with a lesser pressure

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3 years ago
How many grams of zinc sulfide are used to produce 1.28 grams of zinc oxide?
Lostsunrise [7]

Answer:

0.012288122055459

Explanation:

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6 0
2 years ago
A sample of hydrogen gas is found to be 8.50 L at a temperature of 38.0 C and a pressure of 725mm Hg. Find the volume at STP.
Vsevolod [243]
Temp must be Kelvin
38 C = <span> <span> <span> 311.15 </span> </span> </span> K
Volume at STP = 8.50 liters * (273.15 / 311.15) * (725 / 760) =
<span> <span> <span> 7.1182746306 </span> </span> </span> Liters

The formula to use is:

Volume at STP = Present Volume * (273.15 / Present Temp °K) * (Present Pressure (Torr) / 760)

6 0
3 years ago
based on the general trends on intermolecular forces, rank c2h5oh, hcl, and c3h6 in order of increasing boiling point.
nikklg [1K]
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3 0
3 years ago
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3. Which of the following phase changes requires energy to happen?​
nydimaria [60]

Answer:

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3 years ago
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