What is the difference between groups and periods on the periodic table.? What do they tell you?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.