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2 years ago

PLEASE HELP!!!!!!!!!!!!!!

Chemistry

1 answer:

Akimi4 [234]2 years ago

4 0

Answser

i didnt do dis my mom has a answer key book

Explanation:

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Does sodium fluoride follow the octet rule? If not, which exception is it?

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Answer:

Sodium fluoride (NaF) does indeed follow the octet rule without any violations.

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Electronegativity in group 1 decreases as we go from Lithium to Francium.

Explanation:

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In the same way group 1 elements i.e. from Lithium to Francium electronegativity decreases.

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Write balance complete molecular equation, ionic equation, and net ionic equations for the reactions that occur when each of the

AveGali [126]

Answer: The complete molecular, ionic, and net ionic equations are given below. The spectator ions are sodium and nitrate ions.

Explanation:

The ionic equation is defined as the equation in which all the substances that are strong electrolytes present in an aqueous state and are represented in the form of ions.

The net ionic equation is defined as the equations in which spectator ions are not included.

Spectator ions are the ones that are present equally on the reactant and product sides. They do not participate in the reaction.

The balanced molecular equation for the reaction of lead (II) nitrate and sodium sulfide follows:

$Pb(NO_3)_2(aq)+Na_2S(aq)\rightarrow PbS(s)+2NaNO_3(s)$

The ionic equation follows:

$Pb^{2+}(aq)+2NO_3^-(aq)+2Na^+(aq)+S^{2-}(aq)\rightarrow PbS(s)+2Na^+(aq)+2NO_3^-(aq)$

As sodium and nitrate ions are present on both sides of the reaction. Thus, they are considered spectator ions.

The net ionic equation follows:

$Pb^{2+}(aq)+S^{2-}(aq)\rightarrow PbS(s)$

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3 years ago