HELP PLEASE Sometimes people mistakenly state that velocity and speed are the same thing. People might make such a mistake because they forget that velocity describes both speed and .

•volume
•force
•the time interval
•direction

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

c is the answer because when something is left after something evaporates that shows the chemical change.

um i think it might be a car?

the maximum mass of nh3 is nh3 in grams