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kondaur [170]
3 years ago
14

Whenever anything moves, it has _____ energy. chemical heat mechanical

Chemistry
1 answer:
BaLLatris [955]3 years ago
5 0
Mechanical, because the other two make no sense and mechanical energy is the combination of kinetic and potential energy, or moving and still respectively.
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There are 9.88x1023 molecules of O2 available.
blondinia [14]

Answer:

1.64 moles O₂

Explanation:

Part A:

Remember 1 mole of particles = 6.02 x 10²³ particles

So, the question becomes, how many  '6.02 x 10²³'s are there in 9.88 x 10²³ molecules of O₂?

This implies a division of given number of particles by 6.02 x 10²³ particles/mole.

∴moles O₂ = 9.88 x 10²³ molecules O₂ / 6.02 x 10²³ molecules O₂ · mole⁻¹ = 1.64 mole O₂

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Part B needs an equation (usually a combustion of a hydrocarbon).

7 0
2 years ago
Draw the cis and trans isomers of 2-butene, ch3chchch3. show all hydrogen atoms.
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