In an experiment, two unknown compounds (one an alcohol and the other an amine) of equal molecular mass were heated. The result of the experiment shows that Compound A boiler at a lower temperature that Compound B. Which of the following correctly explains the identity of Compound A and why this was the result. 1. It is an amine; it contains nitrogen-hydrogen bonds that are less polar and oxygen-hydrogen bonds.
2. It is an alcohol; it contains nitrogen-hydrogen bonds that are less polar and oxygen-hydrogen bonds.
3. It is an alcohol; it contains oxygen-hydrogen bonds that are less polar and nitrogen-hydrogen bonds.
4. It is an amine; it contains oxygen-hydrogen bonds that are less polar and nitrogen-hydrogen bonds.

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

my dad did alot of meth and ace cheeks

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.