Suppose you have a sample of an unknown mineral with a mass of 86g. you placed the sample in agrduated cylinder filled with water to the 55ml mark. the sample sinks to the bottom of the cylinder and the water level rises to the 71 ml mark . wat is the density?

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.

What is the percentage of hydrogen in c2h4

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.