Here are some general classifications of chemical reactions: In a combination re

Question

Here are some general classifications of chemical reactions:

In a combination reaction, two or more reactants combine to form one product: A+B?C.

In a decomposition reaction, one reactant undergoes reaction to produce two or more products: D?E+F.

A combustion reaction is a rapid reaction that produces a flame. The reaction commonly occurs between a hydrocarbon and oxygen to produce carbon dioxide and water: fuel+O2?CO2+H2O

Part A) Classify each of the following reactions: CH4(g)+2O2(g)?CO2(g)+2H2O(g) 2NaClO3(s)?2NaCl(s)+3O2(g) Ba(s)+F2(g)?BaF2(s) MgO(s)+CO2(g)?MgCO3(s) 2CH3OH(l)?2C(s)+4H2(g)+O2(g) Drag the appropriate items to their respective bins.

Decomposition Combination Combustion

Part B) Diatomic hydrogen gas and diatomic nitrogen gas react spontaneously to form a gaseous product. Give the balanced chemical equation (including phases) that describes this reaction. Indicate the phases using abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively.

Answer: Express your answer as a chemical equation.

Part C) Give the balanced chemical equation (including phases) that describes the combustion of butene, C4H8(g). Indicate the phases using abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively.

Answer: Express your answer as a chemical equation.

Part D) When heated, solid copper(II) carbonate decomposes to solid copper(II) oxide and carbon dioxide gas. Give the balanced chemical equation (including phases) that describes this reaction. Indicate the phases using abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively.

Answer: Express your answer as a chemical equation.

Explanation / Answer

All these are general chemistry questions, just by practising examples we can balance all these chemical equations, no more wondering to solve these.

Decomposition is one reactant going to give two or more products, reverse is combination. Comustion is reactant combines with oxygen and products are always carbon dioxide and water.

Part A):

Decomposition : 2NaClO3 (s) --> 2NaCl (s) + 3O2 (g) & 2CH3OH (l) --> 2C (s) + 4H2 (g) + O2 (g)

Combination: Ba (s) + F2 (g) --> BaF2 (s) & MgO (s) + CO2 (g) --> MgCO3 (s)

Combustion: CH4 (g) + 2O2 (g) --> CO2 (g) + 2H2O (g)

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Part B): This is Haber process of ammonia preparation.

N2 (g) + 3 H2(g) --> 2 NH3 (g)

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Part C):

C4H8 (g) + 6 O2 (g) --> 4 CO2 (g) + 4 H2O (g)

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Part D):

CuCO3 (s) ---> CuO (s) + CO2 (g)

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Hope this helped you!

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