As a substance changes fees from gas to liquid to solid : a- the spacing between molecules increased b- it’s density generally increases c- the spacing between molecules is not affected d- it undergoes a chemical change

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.

When the water vapor cools it condenses select a number that represents his process on the

Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction