In order to have a successful Friedel-Crafts alkylation, what do you need to have?
An aromatic ring, an alkyl halide, and a Lewis-acid catalyst.
A shirt is on sale for 20% off of the regular price of $29.99, you also have a coupon for $5 dollars off when you spend $10 or more. How much do you end up paying for the shirt?
Twenty percent of $29.99 is $5.99, so first you subtract that. $29.99-$5.99= $24.00. You then take $5 off of the final price, $24.00-$5.00= $19.00. This is the total price you end up paying, $19.00.
What is the central dogma as it pertains to molecular biology?
The central dogma explains the flow of genetic information from DNA to RNA (as well as the reverse, and RNA to protein. It does not involve conversion of the genetic material but rather a flow through processing and copying, with intermittent processing.