Which of the Following Ions Interfere(s) with the Action of Detergents

question 46

Multiple Choice

Which of the following ions interfere(s) with the action of detergents in hard water?

• A) Ca²⁺
• B) Na⁺
• C) Mg²⁺
• D) Na⁺, Ca²⁺, and Mg²⁺
• E) Ca²⁺ and Mg²⁺

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Definitions:

Price Elasticity

An indicator for the degree to which the supply or demand level of a good adjusts following a change in its price.

Midpoint Method

A technique used in economics to measure the elasticity of demand or supply, which calculates the percentage change between two points by dividing the difference by the average of those points.

Luxury

A luxury item is a good or service that is considered to be of high quality, often resulting in higher prices and perceived as non-essential but desirable if one has the means.

Demand

The consumer's desire and willingness to pay for a good or service, influenced by price, income, tastes, and expectations.