Which of the following is one way that the base ammonia (NH3) is used? A. To keep swimming pools free of algae.
B. In many beveragesling
C. As a dietary supplement.
D. In many household cleaners.

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

What are the similarities of physical and chemical change ?