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HACTEHA [7]
2 years ago
14

What valence electron number do they all have in common

Chemistry
1 answer:
katovenus [111]2 years ago
5 0
If they are in the same group they have the same valence electrons but since I cannot see what you’re talking about I’m not sure what your question is
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PH of 0,035M HCl? How to count if your calculator hasn't got -lg?
IrinaK [193]

<u>Given information:</u>

Concentration of HCl = 0.035 M

<u>To determine:</u>

pH of the solution

<u>Explanation:</u>

Hydrochloric acid, HCl is a strong acid. It will completely dissociate to give H+ and Cl- ions

HCl → H+ + Cl-

Hence the concentration of H+ = Cl- = 0.035M

Now, pH measures the strength of H+ ions in a given solution. It is expressed as:

pH = -log[H+]

pH (HCl) = -log(0.035) = 1.46

Ans: pH of 0.035M HCl is 1.46

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Describe the difference between at atom and an ion in regards to their substaomic<br> particles.
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