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Marina86 [1]
3 years ago
8

potassium, k, has 19 protons, 20 neutrons, and 19 electrons. what is the charge of the atom’s nucleus?

Chemistry
1 answer:
mixer [17]3 years ago
6 0

from the 19 protons

Answer:

+19

Explanation:

potassium, k, has 19 protons, 20 neutrons, and 19 electrons. what is the charge of the atom’s nucleus?

since only neutrons and protons are in the nucleus, the overall charge in the nucleus is +19 from the 19 protons

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Identify the correct equation for the equilibrium constant Kc for the reaction given. C u ( s ) + 2 A g N O 3 ( a q ) − ⇀ ↽ − C
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Kc = [Cu(NO₃)₂]/[2 AgNO₃]²

Explanation:

Let's consider the following balanced redox equation.

Cu(s) + 2 AgNO₃(aq) ⇄ Cu(NO₃)₂(aq) + 2 Ag(s)

The concentration equilibrium constant (Kc) is equal to the product of the concentration of the products raised to their stoichiometric coefficients divided by the product of the concentration of the reactants raised to their stoichiometric coefficients. It only includes gases and aqueous species.

The concentration equilibrium constant for this reaction is:

Kc = [Cu(NO₃)₂]/[2 AgNO₃]²

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