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Stells [14]
3 years ago
7

This picture depicts secondary succession in a Forest ecosystem.

Chemistry
1 answer:
Damm [24]3 years ago
7 0
I believe it is true
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VikaD [51]

Answer:

Which question?

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What is true about energy?
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The correct answer is option A. Energy cannot be created during an ordinary chemical reaction. There is no such thing as an ordinary chemical reaction. Energy cannot be created or destroyed this is according to the law of conservation of energy. It can only be transformed from one form to another form.
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A gas that effuses through a porous cylinder 1.87 times faster than chlorine gas. what is the molar mass and identity.
Rufina [12.5K]
From the Graham's law of effusion;
R1/R2 = √MM2/√MM1
Molar mass of chlorine gas is 71
Therefore;
1.87= √ 71 /√mm1
= 1.87² = 71/mm1 
mm1 = 71/1.87²
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noname [10]

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2 years ago
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