Question

Which is NOT a sign that a double displacement reaction has occurred?

Question 15 options:

gas may be formed

water may be produced

a precipitate is formed

the coefficients are equal

Answer 1

Equal coefficients are not a sign of a double displacement reaction, whereas the formation of a precipitate, the production of gas, or the creation of water are valid signs.

Step-by-step explanation:

The correct answer to the question 'Which is NOT a sign that a double displacement reaction has occurred?' is that the coefficients being equal is not a sign that a double displacement reaction has occurred. A double displacement reaction, also known as a double-replacement reaction, occurs when two ionic compounds exchange ions to form two new compounds, and this process can be verified by observing certain changes.

The potential signs of a double displacement reaction include the formation of a precipitate, the production of gas, or the creation of water. However, the ratio of the coefficients used in the balanced equation does not indicate whether a double displacement reaction has taken place. For a double displacement reaction to occur, one of the products must typically be a solid precipitate, a gas that bubbles out of the mixture, or an insoluble compound like water forming from the reaction.

Answer 2

the coefficients are equal is NOT a sign that a double displacement reaction has occurred

Step-by-step explanation:

Usually during solutions of two ionic compounds are combined a precipitate (solid) is created. The mix may become cloudy, or may also separate, with the solids falling at the seat of the receptacle. Infrequently, the mix may bubble as a gas or water is produced.

A precipitation reaction is at two aqueous ionic compounds that make a unique ionic compound that is not soluble in water. The insoluble product compound is called the precipitate. The reaction, in this case, is not balanced, which are evaluated by summing coefficients.