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olya-2409 [2.1K]
3 years ago
8

Dose PLA Plastic float?

Chemistry
1 answer:
padilas [110]3 years ago
7 0

Answer:

No, it should sink

Explanation:

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Calculate the lattice energy for NaF (s) given the following
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Answer: E

Explanation:

The lattice energy is the energy change when one mole of a crystal is formed from its components ions in its gaseous sate

Therefore lattice energy = heat of Sublimation+ ionization energy +electron affinity-(heat of formation)

Therefore lattice Energy =     109 +495 -328 +570.

Lattice energy = --923kjmol-1

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the answer that you are looking for is d

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