Atemperature of 273 k is the temperature at which water a. evaporates. b. is at its densest. c. freezes. d. boils.

The number at the end of an isotope’s name is the number.

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.

Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are