Question # 1

The reactions in which products can recombine to form reactants is called.

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Irreversible reactions

Reversible reactions

Direct reactions

Indirect reactions

The reaction in which the number of moles reactants and products not equal in balance chemical equation the units of Kc for this reactions are

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mol^-2

dm³

mol²

mol dm^-1

The substance formed during the chemical reaction are called.

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Products

Reactants

Radical

Element

An equilibrium is achievable only in a:

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big system

small system

open system

closed system

Formation profess of Ammonia by the combination Hydrogen and Nitrogen was given by:

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Dalton

Thomson

Haber

Waage

Such reactions which continue in both directions are called.

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Irreversible

Reversible

Nonreactive

Dynamic

The reaction in which the products can recombine to form reactants are called.

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Reversible reaction

Irreversible reaction

Decomposition

Addition

Which gas is used to manufacture king of chemicals sulphuric acid?

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N₂

O₂

Cl₂

S

The plant use

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Carbon di oxide

Oxygen

Nitrogen

Sulphur

When the magnitude of Kc is very small in indicates.

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Equilibrium will never establish

All reactants will converted to products.

Reaction will go to completion

The amount of products is negligible

The color of Iodine is:

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Purple

Black

Red

Pink

At dynamic equilibrium state:

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Rate of forward reaction≠ Rate of reverse reaction

Rate of forward reaction > Rate of reverse reaction

Rate of forward reaction = Rate of reverse reaction

Rate of forward reaction < rate of reverse reaction

If Qc > Kc the reaction will be in

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Chemical equilibrium

Static equilibrium

Reverse reaction

Forward reaction

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