Which is the best example of commensalism? a. honey bees feed on the pollen of cornflowers and the flowers reproduce. b. barnacles ride on a gray whale’s back to obtain food, and the whale is not harmed. c. squirrels and chipmunks eat the same nuts in a forest where food is scarce. d. prairie dogs often collect and eat food in groups so they are better protected from enemies.

Iwll give extra points to who gets this for ! what type of reaction is this? ?

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?