An example of a pure substance in everyday life is select one: a. a cola drink b. concrete c. sugar d. pond water a soft drink is an example of a(n) select one: a. compound b. element c. heterogeneous mixture d. homogeneous mixture the best way to understand the submicroscopic world is with select one: a. powerful microscopes b. very accurate measuring devices c. models d. physical properties an example of a chemical formula is select one: a. na b. 4.5 g/ml c. d = 13.6 g/l d. h2so4 which of the following materials cannot be broken down into a simpler form? select one: a. solution b. element c. compound d. mixture how many atoms are present in one unit of sodium sulfate, na2so4? select one: a. 4 b. 7 c. 2 d. 1 which of the following is not an example of a model? select one: a. a floor lamp b. a wind tunnel c. a road map d. a globe matter that is large enough to be seen is select one: a. macroscopic b. massive c. submicroscopic d. a scientific model