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ser-zykov [4K]
3 years ago
5

Daje 25pkt bo tylko tyle mam :(( pomoże ktoś?

Chemistry
1 answer:
diamong [38]3 years ago
3 0

Answer:

brak syna 25 punto, syn 13

Explanation:

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What kind of change is a change in state of matter and why<br> Physical or chemical
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Answer:

physical

Explanation:

Common changes of state include melting, freezing, sublimation, deposition, condensation, and vaporization. I hope this helps. :)

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3 years ago
Rory answered that absolute zero is 0°K. Is this answer correct? Explain why or why not.
Ierofanga [76]

Answer:

Yes, this answer is correct.

Explanation:

Absolute zero is -273.15 degrees celsius

T= Tc+273.15

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Tc is the temperature in degrees celsius

substitute;

T= -273.15 + 273.15

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3 years ago
A scientist finds that one volume of an unknown gas X combines with two volumes of another gas Y to form two volumes of a new ga
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Gas X

Explanation:

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X+2Y\rightarrow 2XY_2

According to law of conservation of mass, the moles of each substance in the reaction must be equal on both reactant and product side.

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Between gas X and gas Y , <u>X has to be diatomic for the reaction to balance </u>as:

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3 0
4 years ago
Based on the methods used to separate the substance into its parts, is Substance U a compound?
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3 years ago
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