What do chemists study? A. Living things
B. Mathematical principles
C. The properties of matter and how matter changes
O D. How matter and energy interact

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.