An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomer. the mixture had an observed specific rotation of +13.5degree. if it is known that the specific rotation of the r enantiomer is -39.2degree. determine the percentage of each isomer in the mixture.
r enantiomer = %
s enantiomer = %

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: