Which free elements are found in the earths crust

Assuming a constant temperature which sample below would you expect to be at the highest pressure?

Tap water used for drinking is considered in the DIL calculations. A. True B. False

determine the empirical formula for a compound that has the following analysis: 8.09% carbon, 0.34% hydrogen, 10.78% oxygen, and 80.78% bromine.

which of the following activities will contribute most to the change climate and globel warming? Paddling a canoe, driving a car, skiing down a mountain, riding a bike

Which of these pairs of elements is very likely to form a covalent bond?

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?