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Scilla [17]
3 years ago
11

A ball rolled down from the top of the slope. What kind of energy

Chemistry
1 answer:
Art [367]3 years ago
5 0

Answer:

C

Explanation:

The ball is undergoing a gravitational potential to kinetic energy transformation. When the ball is at the top of the slope, it has the potential to be moved down by gravity, hence the name. When it's rolling down the slope, it turns to kinetic energy, which is when something moves.

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Calcium chloride dehydrate (CaCl₂ · 2 H₂O) have a molar mass equal to 147 g/mol.

Explanation:

To calculate the molar mass of calcium chloride dehydrate (CaCl₂ · 2 H₂O) we use the following formula:

molar mass of CaCl₂ · 2 H₂O = atomic weight of Ca × 1 + atomic weight of Cl × 2 + atomic weight of H × 4 + atomic weight of O × 2

molar mass of CaCl₂ · 2 H₂O = 40 × 1 + 35.5 × 2 + 1 × 4 + 16 × 2

molar mass of CaCl₂ · 2 H₂O = 147 g/mol

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Which of these is a property of a substance that is composed of atoms that are held together by ionic bonds
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