Astudent dissolves 4.5 g of sodium chloride into 75 grams of water which of the following statements is correct regarding the results solution when it is compared to a pure solvent

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.