What is the ph difference of two samples if the concentration of [h+] ions is 1000-fold less in the second sample?
a. the ph of the first sample would be 3 ph units lower than the second sample.
b. the ph of the first sample would be 2 ph units higher than the second sample.
c. the ph of the first sample would be 3 ph units higher than the second sample.
d. the ph of the first sample would be 2 ph units lower than the second sample.

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

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.