Hey guys i have exam tom and I cannot study can anyone give me motivation and inspiration to study

How Aabout yo get off of and go study. XD

Explanation:

why can't u study.

if ur problem is study then don't take it as Borden.

think that its a game

breath in and breath out

then start u game

hope it help

best of luck for ur exam

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

the answer is definitely c.