Which of the items below would be considered the densest? (Show your step-by-step work for calculating density of each, in the units of g/mL, to support of your final answer) A piece of wood with a volume of 2.5 L and a mass of 12.5 kg
A ball with a volume of 139 mL and a mass of 93 g
A tire with a volume of 2.12 L and a mass of 4.22 x 104 mg
A wire with a volume of 3.91 x 10-7 L and a mass of 7.93 x 10-1 ng
A block of metal with a volume of 1350 mL and a mass of 1.29 x 103 g

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Which three statements represent the benefits of performing experiments using computer simulations?

How many grams of sodium chloride are in 250ml of a 2.5m naci solution