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Bogdan [553]
3 years ago
7

Which of these activities performed by a chemist is primarily based on an understanding of physics?

Chemistry
1 answer:
Ilia_Sergeevich [38]3 years ago
8 0
<span>predicting the boiling point of a liquid, given its pressure</span>
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Fill in the left side of this equilibrium constant equation for the reaction of nitrous acid (HNO_2) with water.
mafiozo [28]

Answer:

Ka=\frac{[H^+][NO_2^-]}{[HNO_2]}

Explanation:

The reaction

The reaction of nitrous acid with water is a dissociation reaction of an acid:

HNO_2(aq) + H_2O(l) \longrightarrow H^+(aq) + NO_2^-(aq) + H_2O(l)

HNO_2(aq) \longrightarrow H^+(aq) + NO_2^-(aq)

The Ka equation

Ka=\frac{[H^+][NO_2^-]}{[HNO_2]}

5 0
3 years ago
Read 2 more answers
Is this soulution acidic or basic <br><br> Ph= 12<br><br> Basic <br><br> Acidic
BaLLatris [955]

Answer:

basic

Explanation:

ph>7 soits basic not acidic

7 0
2 years ago
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What speeds up a chemical reaction
storchak [24]
Catalyst can speed up chemical reaction without being used up or involved in thr reaction..
5 0
3 years ago
Due to the small and highly electronegative nature of fluorine, the oxyacids of the this element are much less common and less s
Molodets [167]

Answer:

HOFO = (0, 0, +1, -1)

Explanation:

The formal charge (FC) can be calculated using the following equation:

FC = V - N - \frac{1}{2}B

<u>Where:</u>

V: are the valence electrons

N: are the nonbonding electrons

B: are the bonding electrons

The arrange of the atoms in the oxyacid is:

H - O₁ - F - O₂

Hence, the formal charge (FC) on each of the atoms is:

H: FC = 1 - 0 - 1/2*(2) = 0            

O₁: FC = 6 - 4 - 1/2*(4) = 0        

F: FC = 7 - 4 - 1/2*(4) = +1

O₂: FC =  6 - 6 - 1/2*(2) = -1

We can see that the negative charge is in the oxygen instead of the most electronegative element, which is the F. This oxyacid is atypical.  

I hope it helps you!

3 0
2 years ago
(pls help)
WITCHER [35]
Anthony’s because it explains way more
8 0
2 years ago
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