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tigry1 [53]
3 years ago
5

Anyone good at chemistry ? Maybe you can help me out?

Chemistry
1 answer:
olga55 [171]3 years ago
4 0
I'm good at chemistry for some advice just message me here or roblox my username is rightchem7 .
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Please helpppp ASAP !!!!Which phase changes require the addition of energy to happen, which phase changes require the removal of
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Answer:

Evaporation

Explanation:

Evaporation involves a liquid becoming a gas and sublimation is the change of a solid directly to a gas. Phase changes require either the addition of heat energy or subtraction of heat energy .

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3 years ago
In terms of energy what kind of system is a sealed glass terrarium on a windsill?
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If the sealed glass is permeable to sunlight or to transfer of heat will be an open system, but if the sealed glass is a thermic glass and doesn't allow exchange of heat and exchange of solar energy (for example a mirrored glass that reflect the sunlight) and the terrarium is not exchanging energy with the surroundings will be a closed system. It is a question that doesn't specify too many details about the system in the study. It is hard to give a final answer without making some assumptions.
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3 years ago
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Elenna [48]

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Li2 S2 + H4 N4 O10 -->  Li2 N4 O10 + H4 S2

Li^2  S^2  +  H^4 N^4 O^10  --> Li^2 N^4  O^10  +  H^4 S^2

7 0
2 years ago
What method would you use to find the volume of an irregularly shaped object?
dimulka [17.4K]
Displacement, usually the method that is used to measure the volume of an irregularly shaped object.
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