Discover Questions

When two chlorine atoms bond the bond that forms is: ionic, ionic covalent, nonpolar covalent, or polar covalent? Is this MgCl2, KCl, or K2SO4? Sepia has 54 erasers. Sarala has 21 less erasers than Sepia. How many erasers does Sarala have? Let X be a random variable with E(X)=3 and Var(X)=9. Then E(X^2) is? (The answer should be 18 but explain?)? What is the molarity of a solution made by dissolving 36.29g of NaCl in 2.30L of solution?