3 years ago

How many valence electrons does copper contain?

1 answer:

8 0

Copper has 29 electrons, and its electron configuration is:
1s2 2s2 2p6 3s2 3p6 3d10 4s1.

Therefore, copper has 1 valence electron.

Hope this helps~

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What is the percent by volume of a solution formed by mixing 15 mL of hydrochloric acid into water, forming 75 mL of solution?

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Answer:

= 17% (v/v)

Explanation:

% by Volume = (Volume HCl / Volume of Solution)100%

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= 17% (v/v) 2 sig figs. based on volume values given.

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2 years ago

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Answer:

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Draw a mechanism for the reaction of water with formic acid. In the box to the left, draw any necessary curved arrows. Show the

dsp73

Answer:

See explanation

Explanation:

When water reacts with formic acid, The following equilibrium is set up;

HCOOH(aq) + H20(l) ⇄ HCOO-(aq) + H30+(aq)

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2 years ago

Na CN + HCl ->?? <br><br>Thanks for your time

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Sodium chloride and prussic acid are formed

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