Question

name the observations one can make when chemical reaction occurs​

Answer 1

Answer:

$\underline{\huge{Answer:-}}$

chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change. Absolute confirmation of a chemical change can only be validated by chemical analysis of the products!

Answer 2

Answer :FORMATION OF A NEW OBJECT

Explanation: A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change. Absolute confirmation of a chemical change can only be validated by chemical analysis of the products!