Question

3 of 17 > e chemical equation by adding coefficients as needed. HCl(aq) + As,O,(s) + NaNO3(aq) + H20(1) NO(g) + H, Aso, (aq) + NaCl

chemistry

Answer 1

Grven equation is (un balanced) -HCl(aq) + A5, 03 (s) + NaNO3(aq) + 450(1) Step- To balance Reactant Sede les Iltis] - No ig) + H₂ As Oy (aq) + Nace (aq) the equation, Let's start with As There are a atoms on orde Left hand sede so make it a on Right Hand Products side Sede (Rolls) alo. Now, ean becomes, Ptice (aq) + 45,03 (9) + NaNO3 (aq) + 4b01) - NO (9) + 2 Hy As Oy (aq) + Nace (aq). Step 2 » Now, check for no. of et atoms after step-1 On LHS = 3 on RIISH Bo make ut balanced on Lolls, Now ean becomes 2 HCl caq) + As, 0365) + Na NO3(aq) + H2O(l) > NO (9) + 2H2 As Oy (aq) + NaCl (aq) also after step-1, no. of oxygent atoms on LHS = 7 on Rolls-9 and after step-2, no of ad atoms on Litts=1 on Rells = 1

on balancing for ce, equation becomes, 240 + As, O3 + Na No, & theo - NO + 2 otty Ms Ou + 2 Nall > Now balance Na becomes 2 tl + As₂O3 +2 NaNO₃ + tho NO + 2 H, As2 04 + 2 Nace Now, check for oxygens on boths on htts = 10 on Rai = 9. Balancing oxygen, we get 2 tick + As, 03 + 2 Na NO3 + ette oll) (aq) Not 2 Hyds. Ou + 2 Nach Automatically N also got balanced Now check for all atoms. On Reactant sede On Product sede. Cag) (09) (aq) So, above ean 4 gives the balaxed equation.