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Svetllana [295]
3 years ago
10

Water's _____ point is _____.

Chemistry
2 answers:
Katarina [22]3 years ago
7 0
The answer is b. I hope this helps.
icang [17]3 years ago
3 0

ANSWER:

the answer is B.boiling; 100 °C

TIP: its not the others cuz for melting or freezing it would have to be a negative number!

~batmans wife dun dun dun...aka ~serenitybella

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When chalk is added to water and stirred what is formed​
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The chalk will dissolve
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Which of the following samples contains the greatest number of atoms?
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C. 11 moles of N2O

Explanation:

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If calcium carbonate (CaCO3) decomposes, what would the product of the reaction be?
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Degger [83]
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2 years ago
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The oxidation state of phosphorus is +3 in
IgorC [24]

Answer:

b) Phosphorus acid

Explanation:

To distinguish the type of acid of phosphorus with the oxidation state of +3, we need to be familiar with the chemical formula of each of the compounds:

    Orthophosphoric acid             H₃PO₄

    Phosphorus acid                       H₃PO₃

    Metaphosphoric acid               HPO₃

    Phyrophosphoric acid​               H₄P₂O₇

Now that we know the formula of the given compounds, the algebraic sum of all the oxidation numbers of all atoms in a neutral compound is zero:

Only phosphorus acid yielded an oxidation state of +3 for phosphorus in the compound.

  H₃PO₃:

   we know the oxidation state of H = +1

                                                          O = -2

         The oxidation state of P is unknown. We can express this as an equation:

                3(+1) + P + 3(-2) = 0

                    3 + P -6 = 0

                          P-3 = 0

                          P = +3

6 0
3 years ago
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