In the Middle Ages, most scientists believed that the world was made from four simple elements
and that almost everything was a mixture.
Which type of pure substance had they not
yet discovered?

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

What is the formula that this ionic compounds could form sr2+p3-o2-