Complete and balance molecular, then write full and net ionic equations: __ Na2SO4(aq) + __ Mg(OAc)2(aq) --> Complete ionic: Net ionic:

Write the net ionic equation for the following: CaCla + NazCO; * Co.*- (aq) + Ca²* (aq) CACO: (s) Na (aq) + Cl- (aq)NaCl(s) Ca2+ (aq) + Na* (aq) – CaNa: (s) no precipitate forms Which of the following ionic reaction represents a complete ionic equation? I. Al,0, (s) + 6H* (aq) + 6C1O, (aq) → 2 Al3*(aq) + 6C10, (aq) +3 H, 0 (I) II. PbCr0, (s) → Pb2+(aq) + Cr0; (aq) III. Mg(OH)2 (s) + H2SO, (aq) → MgSO, (aq)+ 2 H20 (1) IV. H2CO, (aq) + 20H (aq)→ clo;- (aq) + 2 H,0 (I) II IV

If 2.00 grams of an unknown DIPROTIC acid (H2A) is titrated with 34.0 mL of 1.35 M NaOH, what is the molar mass (g/mol) of the diprotic acid? H2A+2NaOH⟶2H2O+Na2AH2A+2NaOH⟶2H2O+Na2A (Hint: See equation below in which mm is molar mass (units: g/mol), m is mass (unit: g), and mol isnumber of moles (unit: mol)). mmacid=macidmolacidmmacid=macidmolacid Molar Mass =  ___________   g/mol (input the numeric value only!) Remember: use correct significant figure rules. Significant figures always matter in Chemistry!

Part 2 out of 3 (b) Balance the equation: Ba(OH)2(aq) + H3PO,(aq) → What is the ionic equation?

Example: Write the balanced complete ionic and net ionic equations for the following reaction. ME: Pb(NO3)2 (aq) + 2 Nal (aq) ->>> Pbl2 (s) + 2 NaNO3(aq) CIE: NIE:

8. How many grams of NaH₂PO4 are needed to completely neutralize 43.78 mL of a 0.275 M NaOH solution? (a) Balance this equation first: 0 NaH₂ PO4(s) + NaOH (aq) → O O Nas PO4(aq)+ H₂O(1) (b) Answer: [References]

The reaction of hypothetical elements: A, B, C, D, and E, follows the molecular equation:   AB2(aq) + CDE(aq) -> AE(s) + CB(aq) + DB(aq)   Assuming that all aqueous compounds would fully dissociate, indicate the element/s that would form spectator ions in the subsequent total ionic equation.

Complete and balance the following reaction.  Write ionic and net ionic reactions .   _____ Cu(NO3)2  (aq)   +     _____ NaOH (aq)    --->

?

part b  H2SO4 (aq) + LiOH (aq) --> part c  HCL (aq) + Ba(OH)2 (aq) -->  complete and balance each acid base equation