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Romashka [77]
2 years ago
9

When the reactants have less enthalpy than the products, then __________. A. heat energy is given out B. None of these C. heat e

nergy is absorbed D. the reaction will be complete
Chemistry
1 answer:
velikii [3]2 years ago
4 0

Answer:

answers is = IN

Explanation:

rough=hdishehdvvxhsjhdvvdhdjjevvdhd

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Any substance that when dissolved in water will give off h ions is referred to as a(n) ________.
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10. What base unit of measurement is common to all systems?
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How does Controlled fires help prevent real forest fires?
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6 0
3 years ago
Which of these have the same number of particles as 1 mole of water H2O
Fed [463]

Answer:

It is equal to Avogadro's number (NA), namely 6.022 x1023. If we have one mole of water, then we know that it will have a mass of 2 grams (for 2 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams.

Explanation:

The question is not very much clear.

If you are asking for molecules then 1 mole water= 6.023 * 10^23

If you are asking for atoms then 1 mole water= 6.023 * 10^23 * 3

If you are asking for particles then,

So, in your example you would have one mole of water molecules. If you dissociated those water molecules, than you would end up with 2 moles of hydrogen atoms, and one mole of oxygen atoms.

I hope that was helpful!

H=1 proton,1 electron

O=8 protons,8 neutrons and 8 electrons

total particles in one H2O molecule-28

total no. of particles in 1 mole of water- 6.023 * 10^23 * 28

8 0
3 years ago
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