Question

1. A common mineral in Earth's crust has the chemical composition of 34.55% Mg, 19.96% Si, and 45.49% 0. What is its empirical formula? 2. How many milliliters of 0.100 MHNO, are needed to neutralize the following solution? Write the balanced molecular equation, complete ionic equation, and net ionic equation 58.5 mL of 0.0100 M Al(OH)3 3. a) Balance the following equations. b) Identify oxidizing and reducing agents. c) Determine the oxidation numbers of the elements involved in the redox reaction. Zn (8) + CuSO4 (aq) - 12 (8) + S0,- (aq) - (aq) + S.O.- (aq) 4. Complete and balance the following equations and write the net ionic equations for each. FeCl2 (aq) + NazS (aq) → MgSO4 (aq) + BaCl2 (aq) -

Answer 1

3455 & 1.439 1.439 my - 20551459 y may - 1489-4 oy 0712 0 - 45:49 16 9.84 03.84 - 4 0112 EF ngasion 2) 3MNO + Al(OH) AL(N) + 360 35+ 30g + Alt + 301 - At 300 + 370 At nevtralization millequivalent in Nog = millequivalent any alloH) 01XXV - 6.01 X 38 58.5 [u: 17.55 me T