Question

Which of the following is the weakest characteristic to determine a chemical change? *

Answer 1

Answer:

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Answer 2

Answer:

Explanation:

Chemical change :

A chemical transition, often called a chemical reaction, is a process that changes one or more compounds into one or more brand-new, distinct substances. To put it another way, a chemical transformation is an atomic rearrangement-based chemical process.

The characteristics of a chemical reaction are:

Evolution of gas,

Formation of a precipitate,

Change in colour,

Change in temperature,

Change in state etc.

The weakest characteristic to determine a chemical change.

The weakest characteristic of a chemical is Change in state beacause the process of changing a material's state from one to another is referred to as a change of state. There is often a change in state in chemical processes. A solid product will ultimately result from a reaction that started with gaseous or liquid reactants, and vice versa.

Example : Ammonia gas reacts with hydrogen chloride gas to produce solid ammonium chloride.

NH3 (g) + HCl (g) = NH4Cl (s)

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