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slega [8]
3 years ago
10

What charge will a potassium ion form?

Chemistry
1 answer:
miskamm [114]3 years ago
6 0

Answer:Potassium

Explanation:

Magnesium is in the second column and therefore has 2 electrons in its outermost shell. It would tend to lose two electrons and form a +2 ion. Potassium is in the first column and therefore has 1 electron in its outermost shell. It would tend to lose one electron and form a +1 ion.

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Reduction half reaction: Cu²⁺(aq) + 2e⁻ → Cu⁰(s).


Oxidation half reaction: NO₂⁻(aq) + H₂O(l) → NO₃⁻(aq) + 2H⁺(aq) + 2e⁻.  

Balanced chemical reaction:

Cu²⁺(aq) + NO₂⁻(aq) + H₂O(l) → Cu(s) + NO₃⁻(aq) + 2H⁺(aq).

Copper is reduced from oxidation number +2 (Cu²⁺) to oxidation number 0 (Cu) and nitrogen is oxidized from oxidation number +3 (in NO₂⁻) to oxidation number +5 (in NO₃⁻).


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\boxed {\boxed {\sf a\approx 2.7 \ m/s^2}}

Explanation:

Force is equal to mass times acceleration.

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\frac{F}{m} =a

The force is 6.2 Newtons, but we can convert the units to make the problem easier later on.

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The mass is 2300 grams, but we need to convert it to kilograms.

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