Mass is 5 grams and the volume is 4.5 grams what is the density

What is the ph of a 2.6*10^-9 m H + solution

Where does the majority of drinking water come from in rural areas in North Carolina? A. groundwater B. rivers C. oceans D. ponds

The molar mass of aniline is 93 g/mol. what is its molecular formula

How many grams of tin are found in 3.50 moles of tin?

What is the concentration of a solution that contains 450mL of water and 200g of iron II chloride

A student states the following: "Since acetone (nail polish remover) evaporate more readily than water, one would assume that acetone has weaker intermolecular forces than water." Evaluate their claim. (2 sentences)

A catalyst can only be used once. True False

On what basis do we distinguish between substances and separate them from one another?

What is the net ionic equation for the following reaction? H2CrO4 + Ba (OH) 2

How does improving food-storage facilities make farming more sustainable? A. It decreases the amount of water needed. B. It keeps food from rotting as quickly and being wasted. C. It decreases the amount of land needed. D.