Which of the following reactions illustrates amphoterism

Chemistry

1 answer:

gregori [183]3 years ago

5 0

The answer is;

H₂O+H₂O⇌H₃O⁺+OH⁻

Amphoteric substances are capable of acting as a base or an acid in a reaction. The reason water is considered amphoteric is because it is capable of self-ionizing. Another popular amphoteric compound is Al2O3. These molecules are able to accept and donate a proton.

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If the volume of a gas increased from 2 to 6 L while the temperature was held constant, the pressure of the gas decreased by a factor of 3.

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Boyle's law that says "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure." This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

P * V = k

To obtain the proportionality factor k you must make the quotient:

$k=\frac{V2}{V1} =\frac{6 L}{2 L}$

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This means that if the volume of a gas increased from 2 to 6 L while the temperature was held constant, the pressure of the gas decreased by a factor of 3.

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