Which of the following is an example of a producer?

Group of answer choices

Tree

Hawk

Rabbit

Mushroom

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid

Why does ammonia, nh3, behave as a base when it reacts with an acid? z

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule