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Brilliant_brown [7]
3 years ago
12

A student measures the mass of a sample of a metallic element, M. Then the student heats the sample in air, where it completely

reacts to form the compound MO. The student measures the mass of the compound that was formed. Which of the following questions can be answered from the results of the experiment?
Chemistry
1 answer:
mixas84 [53]3 years ago
5 0

Answer:What is the actual Molar mass of M?

Explanation:

The mass of the M is measured before, and after heating. Therefore, its easy to calculate the oxygen required to heat the M. Applying that to the reaction M+O₂⇒MO, will get you all the information about the Oxygen, and therefore you can calculate the Molar mass of M.

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Gre4nikov [31]
I think the answer is D no change. Though you add more CO2, but the pressure is not mentioned. If the pressure is constant and the reaction is already balanced, the H2O is also saturation and can not absorb more CO2.
6 0
3 years ago
The melting points and boiling points of 4 substances are shown.
Serggg [28]

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it's

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Explanation:

i hope you got it

4 0
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aspirin C6H4(CO2)(CO2CH3),can be prepared in the chemistry laboratory by the reactions of salicylic acid, C6H4(CO2H)(OH),with ac
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262mol 1=kg
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8 0
4 years ago
What is the enthalpy of fusion of water?
malfutka [58]

Answer:

d-  334 kJ/g.

Explanation:

You can detect it from the units of the different choices.

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c- has the unit g/mol which is the unit of the molar mass.

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<em>So, the right choice is: d-  334 kJ/g.</em>

5 0
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8 0
4 years ago
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