Which of the following statements is true?
o alcohol is not addictive.
o liver scarring is caused by smoking.
o bulemia should be treated by a therapist.
trying drugs once is not unhealthy.

What does the symbol (–hfus) indicate in a phase change?

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution

Which is an example of a reversible physical change?