Which of the following equations is balanced for charge and mass? a. s(s) + 2h+ h2s(g) + 2e– b. s(s) + 2h+ + 2e– h2s(g) c. s(s) + 2e- h2s(g) d. s(s) + 2h+ h2s(g)

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.

Choose the correct statement about licensed veterinarians in the united states. a. they must be certified by the avma. b. they can treat all nonhuman animals. c. they can can treat only animals specified on the license. d. they must choose a specialty.