Chemistry, 26.05.2021 15:50, danielanderson12
Draw the cation products of the fragmentations that account for the peaks in n-octane: 85, 71, 57. Draw the molecules on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars.
Answers: 2
Chemistry, 21.06.2019 15:40, tristen2001
Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture
Answers: 3
Chemistry, 22.06.2019 08:40, jaueuxsn
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.
Answers: 2
Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Draw the cation products of the fragmentations that account for the peaks in n-octane: 85, 71, 57. D...
Biology, 31.03.2021 04:40