Answer:

Explanation:
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In this case, according to the given information it turns out possible for us to realize that one mole of the given compound, Mg(ClO₄)₂, has one mole of Mg, two moles of Cl and eight moles of O; thus, we proceed as follows:

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Answer:
( c ) sunlight.
Explanation:
the leaves are closer to the sunlight they require.
Answer:
A} Kinetic chemical energy
Explanation:
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This would be 'chemical' weathering.
Acid rain would react with the minerals in the rocks, causing them to break down.
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When heated, particles vibrate faster, thus increasing the distance between one another. The distance between these particles results in changes of state. Therefore, increased molecular motion results in expansion of an object. This works vice versa for cooling. As the vibrations slow down, the particles become closer together. This results in contraction.