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What does the law of conservation of energy state about energy in a closed system?
O Energy cannot be created or destroyed.
O Energy can be created but not destroyed.
O Energy can be destroyed but not created.
O Energy can be either destroyed or created.
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Energy cannot be created or destroyed.

Explanation:

The Law of Conservation of Energy states that energy cannot be created nor destroyed, only converted from one form of energy to another.

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.