The rate of sulfur formation in the reaction of sodium thiosulphate with nitric acid:
a. does not change with increasing concentration of sodium thiosulfate
b. increases with increasing concentration of sodium thiosulfate
c. decreases with increasing concentration of sodium thiosulfate
d. increases with increasing concentration of nitric acid

Which is an example of a reversible physical change?

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices

Nthis lab, you will do experiments to identify types of changes. using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments