What description best matches democritus's idea of the atom? a particle that cannot be divided or destroyed
a particle split into equal portions
a gel with small particles spaced evenly throughout it
a combination of small particles joined together

Why did southern business leaders want to increase the number of slaves

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.