Compound X has a molar mass of 283.89 mol^-1 and the following composition: element mass %
phosphorus 43.64%
oxygen 56.36%

Write the molecular formula of X .

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

What effect might melting sea ice have for people who live in coastal areas?

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring