Astudent is testing water to know which is best for cleansing purposes with soaps. he would find that the cleansing action of soaps is best when he uses water obtained from
a. rain
b. tap
c. hand pump
d. pond

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

What is the overall order of reaction for rate = k[no]2[o2]

Compare and contrast physical changes with chemical changes.