2.4 What do you understand by the word volatile
when used in chemistry?
1.it​

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a