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chapter5 - Homework Chapter 5 4(a Ba(NO3)2(b Na2SO4 NaClO4...

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Homework Chapter 5 4 (a) Ba(NO 3 ) 2 (b) Na 2 SO 4 , NaClO 4 , NaCH 3 CO 2 (c) KBr, Al 2 Br 6 10 Ni(NO 3 ) 2 (aq) + Na 2 CO 3 (aq) NiCO 3 (s) + 2 NaNO 3 (aq) Ni 2+ (aq) + CO 3 2– (aq) NiCO 3 (s) 16 H 3 PO 4 (aq) H + (aq) + H 2 PO 4 (aq) H 2 PO 4 (aq) H + (aq) + HPO 4 2– (aq) HPO 4 2– (aq) H + (aq) + PO 4 3– (aq) 20 (a) H 3 PO 4 (aq) + 3 KOH(aq) K 3 PO 4 (aq) + 3 H 2 O( l ) phosphoric acid, potassium hydroxide, potassium phosphate, water (b) H 2 C 2 O 4 (aq) + Ca(OH) 2 (s) CaC 2 O 4 (s) + 2 H 2 O( l ) oxalic acid, calcium hydroxide, calcium oxalate, water 24 (a) Zn(s) + 2 HCl(aq) H 2 (g) + ZnCl 2 (aq) Zn(s) + 2 H + (aq) H 2 (g) + Zn 2+ (aq) (b) Mg(OH) 2 (s) + 2 HCl(aq) MgCl 2 (aq) + 2 H 2 O( l ) Mg(OH) 2 (s) + 2 H + (aq) Mg 2+ (aq) + 2 H 2 O( l ) (c) 2 HNO 3 (aq) + CaCO 3 (s) Ca(NO 3 ) 2 (aq) + H 2 O( l ) + CO 2 (g) 2 H + (aq) + CaCO 3 (s) Ca 2+ (aq) + H 2 O( l ) + CO 2 (g) 30 (a) K 2 CO 3 (aq) + Cu(NO 3 ) 2 (aq) CuCO 3 (s) + 2 KNO 3 (aq) precipitation reaction (b) Pb(NO 3 ) 2 (aq) + 2 HCl(aq) PbCl 2 (s) + 2 HNO 3 (aq) precipitation reaction (c) MgCO 3 (s) + 2 HCl(aq) MgCl 2 (aq) + CO 2 (g) + H 2 O( l ) gas-forming reaction
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36 (a) P is +5 and F is –1 (d) N is +5 and O is –2 (b) H is +1, As is +5, and O is –2 (e) P is +5, O is –2, and Cl is –1
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