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3 years ago

A system is said to be in a state of dynamic equilibrium when the

Chemistry

1 answer:

timama [110]3 years ago

7 0

Answer:

The correct option is D.

Explanation:

Chemical equilibrium refers to a state in which the concentration of both reactants and products are present in concentration which shows no tendency of changing with time. At this point there is no observable changes in the system. The chemical equilibrium will change to dynamic equilibrium once a reversible reaction occurs. In this case, the ratio of reactants or product changes but there are movements between the chemicals in such a way that there is no net change. At dynamic equilibrium, reactant and products are formed in a rate that keep the concentration of both constant.

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Which change in oxidation number represents reduction?

Mrrafil [7]

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3 years ago

The compound sodium carbonate is a strong electrolyte. Write the reaction when solid sodium carbonate is put into water:

Ludmilka [50]

The compound sodium carbonate is a strong electrolyte because it completely dissociates when placed in water into its component ions. The equation of the reaction can be expressed as:

$Na_2CO_3_{(s)} ---> 2 Na^+_{(aq)} + CO_3^{(2+)}_{(aq)}$

The dissociation leads to the formation of sodium and carbonate ions with the latter held together by its internal covalent bond.

This is unlike weak electrolytes that do not dissociate completely in water or aqueous solutions. Only a small fraction of the solute exists as ions in the solution.

More on strong and weak electrolytes can be found here: brainly.com/question/3410548

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3 years ago

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horrorfan [7]

Answer:

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3 years ago

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BlackZzzverrR [31]

Answer:

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Determines the mass of the atom

Marizza181 [45]

Answer:

No of neutrons and protons decides mass of the atom. Electrons having negligible

mass are ignored.

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=Z+N

For eg:

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=1 AMU

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3 years ago