5-hydroxy-4-methyl-2-heptanone forms a cyclic hemiacetal, which predominates at equilibrium in aqueous solution. How many stereoisomers are possible for 5-hydroxy-4-methyl-2-heptanone

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false