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Gnoma [55]
3 years ago
13

Every substance melts at 0 degrees Celsius and boils at 100 degrees Celsius.

Chemistry
2 answers:
zheka24 [161]3 years ago
6 0
Hello! It is true that water boils at 100% C, however, this is not true for any substance. Take steel, for instance, steel would take MUCH higher temperatures to melt, and to boil. As it says "ANY SUBSTANCE" this would be false.

I hope this helped!

I am, yours most sincerely,
SuperHelperThingy
Gnom [1K]3 years ago
4 0
False, that only applies to water as far as I know, but I know for a fact that gold does not melt at 0 degrees Celsius
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butalik [34]

Answer:

2.1 moles of water formed.

Explanation:

Given data:

Moles of water formed = ?

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Solution:

Chemical equation:

2Ni(OH)    →  Ni₂O + H₂O

Now we will compare the moles of Ni(OH)  with water.

             Ni(OH)           :            H₂O

                2                 :              1

              4.20             :            1/2×4.20 = 2.1 mol

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Answer:

hope i helped!

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