Which question could be answered with qualitative data? A: how tall is the plant
B: how do the plants flower smell
C: how many leaves are on the plant
D: how much matter makes up the plant

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

What are the similarities of physical and chemical change ?