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2 years ago

Identify the acids and the bases in the chemical equation

Chemistry

1 answer:

agasfer [191]2 years ago

8 0

<h3>Answer;</h3>

Acids; HCl and HC5H5N+

Bases; C5H5N and Cl-

<h3>Explanation;</h3>

According to Bronsted-Lowry Theory an acid is a proton or hydrogen ion donor while a base is a proton or a hydrogen ion acceptor.
In this case, both HCl and HC5H5N+ are acids as they are donors of hydrogen ions. HCl is an acid to the forward reaction while HC5H5N+ is a acid to the reverse reaction.
On the other hand, C5H5N and Cl- are bases, they are acceptors of hydrogen ions. Cl- is a base in the reverse reaction while C5H5N is a base in the forward reaction.

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kifflom [539]

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Explanation:

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2 years ago

How many kilojoules of heat are released when 0.72 mole of oxygen gas are used to combust methane?

KonstantinChe [14]

0.72 mole of oxygen would produce 320.4 kJ of heat.

Explanation:

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According to the equation,

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So, 0.72 moles of O₂ will produce:

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2 years ago

If the formation of NaCl proceeds according to the following equation and change in enthalpy, what is the reaction and change in

Sergio039 [100]

Answer:

2NaCl → 2Na + Cl₂, ΔH = 822 kJ

Explanation:

The chemical equation for the formation of NaCl is:

Na + (1/2) Cl₂ → NaCl , ΔH = - 411 kJ

That equation means that 1 mole of NaCl is formed by the reaction of 1 mole of Na and 1/2 mole of Cl₂, with a release of energy of 411 kJ.

The decomposition of NaCl is the inverse of the formation reaction; thus, you swift products and reactants and inverse the sign of the change in enthalpy:

NaCl → Na + 1/2 Cl₂, ΔH = 411 kJ

Since you want the decomposition of 2 moles you multiply the equation and the ΔH by 2:

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2 years ago

1. Write the empirical and graphic formulas of nitric acid and aluminium

Gwar [14]

1. HNO₃ nitric acid

Al(NO₃)₃ aluminium nitrate

You may find the the attached picture the graphical representation of both compounds.

2. You may find bellow the full equations

Explanation:

1. HNO₃ nitric acid, Al(NO₃)₃ aluminium nitrate

dissociation equation

HNO₃ (l) + H₂O (l) → NO₃⁻ (aq) + H₃O⁺ (aq)

Al(NO₃)₃ (s) + H₂O (l) → Al³⁺ (aq) + 3 NO₃⁻ (aq)

2. molecular equations

Al(OH)₃ (s) + NaOH (aq) → NaAl(OH)₄ (s)

Ba(OH)₂ (aq) + NiCl₂ (aq) → BaCl₂ (aq) + Ni(OH)₂ (s)

ionic equations

Al(OH)₃ (s) + Na⁺ (aq) + OH⁻ (aq) → NaAl(OH)₄ (s)

Ba²⁺ (aq) + 2 OH⁻ (aq) + Ni²⁺ (aq) + 2 Cl⁻ (aq) → Ba²⁺ (aq) + 2 Cl⁻ (aq) + Ni(OH)₂ (s)

Learn more about:

molecular and ionic equations

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2 years ago

Identify the acids and the bases in the chemical equation ​

Identify the acids and the bases in the chemical equation