Which of the following properties of minerals is
expressed in numbers?
a. fracture c. hardness
b. cleavage
d. streak

Which best describes how johannes kepler developed his laws of planetary motion

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.