Ammonium hydroxide is a weak base according to the Arrhenius definition. This means that ammonium hydroxide-
A. receives most of its H+ in solution.
B. gives up some of its Ht in solution.
C. receives most of its OH in solution.
D. gives up some of its OH in solution.

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

Is a pencil falling to the floor anon contact force, a force, or a contact force

How is an endothermic reaction identified