Which of following reactions shows the formation of a hydronium ion? h+ + h2o h3o+ h2o + co2 h2co3 naoh na+ + oh− h2o + nh3 oh− + nh4+

Answer : The reaction shows the formation of hydronium ion is,

Explanation :

The given reactions are:

(1)

In this reaction, hydrogen ion react with water to give hydronium ion as a product.

(2)

In this reaction, water react with carbon dioxide to give carbonic acid as a product.

(3)

In this reaction, sodium dissociate to give sodium ion and hydroxide ion as a products.

(4)

In this reaction, water react with ammonia to give ammonium ion as a product.

From this we conclude that, only reaction 1 shows the formation of hydronium ion. While the reactions do not shows the formation of hydronium ion.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.