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2 years ago

Briefly describe the action of hardwater with soap

Chemistry

1 answer:

morpeh [17]2 years ago

4 0

Answer:

The correct answer is - hard water reacts to form the calcium or magnesium salt of the organic acid of the soap.

Explanation:

Soaps are made up of fatty acids or oils by treating with strong alkali and are salts of sodium and potassium. Hard water, on the other hand, has a high concentration of minerals in comparison to soft water. When hard water and soap are mixed together the salts of the minerals like Ca2+ and Mg2+ ions present in hard water react with fatty acids of the soap.

The sodium salts are changed to the salts of calcium and magnesium which are precipitated to an insoluble substance. The insoluble salts of the calcium or magnesium dirt stick on the clothes thus cleaning ability of soap is reduced.

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What is the mass of the solution when 1 pound of salt is dissolved in 20 pounds of water?

kotykmax [81]

Answer:

Explanation:

The dissolution of salt in water is basically a physical process and the law of conservation of mass which states that mass can neither be created nor destroyed applies. The mass of each component before dissolution will be same after dissolution.

When one pound of salt is dissolved in 20 pounds of water, the resulting solution will weigh 1+20 pounds.

mass of solution = mass of salt + mass of water

= 1+20

mass of solution = 21 pounds

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3 years ago

Balance each reaction and write its reaction quotient, Qc:(a) NO₂Cl(g) ⇄ NO₂(g) + Cl₂(g)

AleksAgata [21]

When we balance the given equation

NO₂Cl(g) ⇄ NO₂(g) + Cl₂(g)

We will get

2NO₂Cl(g) ⇄ 2NO₂(g) + Cl₂(g)

Solution:

Balancing the given equation

NO₂Cl(g) ⇄ NO₂(g) + Cl₂(g)

We have to balance the number of Cl

2NO₂Cl(g) ⇄ NO₂(g) + Cl₂(g)

We have to balance the number of N, O.

2NO₂Cl(g) ⇄ 2NO₂(g) + Cl₂(g)

We will get the balanced equation

2NO₂Cl(g) ⇄ 2NO₂(g) + Cl₂(g)

The reaction quotient will be

Qc = [product] / [reactant]

Qc = [NO₂(g) + Cl₂(g)] / [NO₂Cl(g)]

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brainly.com/question/26694427

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stiv31 [10]

Answer:

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3 years ago

Read 2 more answers

Suppose you throw a cube-shaped object and a spherical-shaped object of equal volume in the same volume of water. The ball sinks

brilliants [131]

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2 years ago

Briefly describe the action of hardwater with soap​

Briefly describe the action of hardwater with soap