PH Problems Calculate [H3O+] and [OH] for the following:
A. 80 M HCI
B. 45 M LiOH
C. 50 M KOH
D. 92 M HBr
E. 1.7 M NaOH
F. 1.0 x 10-4 M Ca(OH)2
G. 1.0 x 104 M H2SO4

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Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above