from the beginning of a chemical reaction to the end, what stays the same? mark all that apply. *

moles

mass

number of atoms

types of compounds

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Which of the following words describe the reality that the universe looks the same from various perspective

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?