Label the 1H and 13C NMR spectra of cyclohexene. Use letters (a, b, c, etc.) to correlate Hs with peaks in the 1H NMR spectrum, and numbers (1, 2, 3, etc.) to correlate Cs with peaks in the 13C NMR spectrum.

What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes

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.)

Which change to the system wood cause the freely-moving piston to lower?