2. What is primary function of the nucleus? * O A To store the DNA of a cell.
O B. To store water in the cell.
O C. To control the substances that leare and come into acell
O D. To convert molecules into energy for the cell

Does the temperature affect the solubility of sugar and salt in water? if it does tell me like different temperatures with different solubilities so i can sketch down a graph

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?