Draw two different ways to prepare (CH3)2CHCOC(CH3)3 from an acid chloride and an organocuprate reagent. Be sure to draw the skeletal (line-bond) structures of each starting material; condensed structures will not be accepted.

Answers are 1,2,4 its correct on edgenuity.

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

Answerelement;

Acidichope this