if a dairyman has 300 pounds of milk testing 3 utterfat, how many pounds of skimmed milk (with no butterfat) must he remove to have milk testing 3.6 utterfat?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

What must happen before a body cell can begin mitotic cell division

1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency