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 = %

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms