What mass of calcium hydroxide (ca(oH)2 is required to prepare 200ml of 0.2 of solution​

Given that the molar mass of nano3  is 85.00  g/mol, what mass of nano3  is needed to make 4.50  l of a 1.50  m nano3solution? use  .6.75 g18.9 g255 g574 g

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

How can the periodic table be used to predict the behavior of elements?