James needs 4.20 moles of nabr for an experiment. how many grams of nabr must he measure out to have 4.20 moles? a. 24.5 b. 103 c. 183 d. 432

Sugar is dissolved in water. which is the solute? sugar neither both water

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

Asample of sea water contains 6.28g of sodium chloride per litre of solution. how many milligrams of sodium chloride would be contained in 15.0ml of this solution?