Question

Balance the following equations. (Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.) (*) PCI, (s) + H200) - Hypo (aq) HCl(a) chemPad YON one or more states-of-matter (b) Co(s) + HNO3(aq) - Co(NO3)(20) + H200) + NO(g) chemPad X.X" Greek (0) P,(s) + 12(5) - P1,(s) chemPad Your answer appears to be missing one or more states-of-matte (d) Co(s) + 0,(0) -- C0,0(s) chemPad Help X.XO - Break Your answer appears to be missing one or more states (e) H2(g) + Cl2(9) -- HCG) chemPad Help X.X" O Creek Your answer appears to be missing one or more states-of-matter. in Pt(s) - Pt(s) + 12(9) chemPad Help X.X°C Dresse

Answer 1

in (a) no. of P atoms are same on both reactant and product. in reactant, there are 5 Cl, but in product there is 1 Cl atm, so multiplied HCl by 5, then to balance O and H, multiply H2O by 4.

Balanced equations for (a) PUs (s) + 4H₂O(0) H₃ Poulaq.) +SHO lag.) (6) 3 Cols)+q HNO₃(aq.) 3 CO CHO3)2 (as.) + 4 H₂O16) +2006) (c) Pu (s) to I2 (5) 4 P13 (3) (d) 3 Co (s) + 2O2(g) - co₂ Ou (s) (e) H2(g) + Uzly) - 2 HU (3) 3 (4) Pt In (s) - Ptis) +2 I 2(g)

(b) Co are same on both sides. to balance O multiply by 8 to hno3, 3 to Co(NO3)2, 4 to H2O and 2 to NO. now last to balance Co multiply by Co to 3.N is balanced by these factors.

(c) To balance P, multiply PI3 by 4, then to balance I, multiply I2 by 6.

(d)to balance Co and O, multiply Co by 3 and O2 by 2.

(e) to balance multiply HCl by 2.

(f) to balance I, multiply I2 by 2.