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Katyanochek1 [597]
3 years ago
5

Identify the decomposition reaction. 2nh3 + h2so4 ⟶ (nh4)2so4 2nabr + ca(oh)2 ⟶ cabr2 + 2naoh 2 no2 ⟶ 2 o2 + n2 3pb + 2h3po4 ⟶ 3

h2 + pb3(po4)2
Chemistry
2 answers:
TEA [102]3 years ago
7 0

A decomposition reaction should look like

A ------> B +C+...

It has to have only one reactant and several products.

2 NO2 ⟶ 2 O2 + N2

Andrei [34K]3 years ago
3 0

Answer : The correct option is, 2NO_2\rightarrow 2O_2+N_2

Explanation :

Decomposition reaction : It is a type of reaction in which a single larger compound decomposes to give two or more smaller molecules as a product.

The general representation of decomposition reaction is :

AB\rightarrow A+B

From the given options,

2NO_2\rightarrow 2O_2+N_2 this reaction a decomposition reaction in which a single nitrogen dioxide decomposes to give oxygen gas and nitrogen gas as a product.

While the other reactions,

2NH_3+H_2SO_4\rightarrow (NH_4)_2SO_4 this reaction is a combination reaction in which the two or more molecules combine to form a larger single molecule as a product.

2NaBr+Ca(OH)_2\righatrrow CaBr_2+2NaOH this is a double displacement reaction in which the cation and the anion of the two reactant exchange their places to give two another compounds as a product.

3Pb+2H_3PO_4\rightarrow 3H_2+Pb_3(PO_4)_2 this is a single displacement reaction in which the more reactive metal displaces the least reaction metal from its compound.

Hence, the decomposition reaction will be, 2NO_2\rightarrow 2O_2+N_2

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Answer:

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When a solution of 0.1 M Mg(NO3)2 was mixed with a limited amount of aqueous ammonia, a light white, wispy solid was observed, i
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<u>Answer:</u> The net ionic equation is written below.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

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Ionic form of the above equation follows:

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As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

Mg^{2+}(aq.)+2OH^-(aq.)\rightarrow Mg(OH)_2(s)

Hence, the net ionic equation is written above.

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