HEL PLEASE What is the number of moles of H2 produced when 23 g of sodium react with water according to the equation 2Na(s) + 2H2O(l)  2NaOH(aq) + H2(g)

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next

Is of of 3- ? a. 1--3- b. 1--2- c. 1--3- d. of