1. which of these is the best example of translational motion?

a. distance system

b. coordinate system

c. delta point

d. reference point

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

An observation that requires measurement is called quantitative observable or qualitative