2hcl + mg = mgcl + h2 n(hcl): n(mg = 2: 1 m(hcl) = 36,5 * 2 моль = 73 m(mg) = 24 m(hcl): n(mg) = 3: 1 agno3 + hcl = agcl + hno3 n(agno3): n(hcl) = 1: 1 m(agno3) = 170 m(hcl) = 36,5 m(agno3) : n(hcl) = 5: 1 cu(no3)2 + 2naoh = cu(oh)2 + 2nano3 n(cu(no3)2) : n (nsoh) = 1: 2 m(cu(no3)2) = 187,5 m(naoh) = 2* 40 = 80 m(cu(no3)2): m(naoh) = 2: 1
2hcl + mg = mgcl + h2 n(hcl): n(mg = 2: 1 m(hcl) = 36,5 * 2 моль = 73 m(mg) = 24 m(hcl): n(mg) = 3: 1 agno3 + hcl = agcl + hno3 n(agno3): n(hcl) = 1: 1 m(agno3) = 170 m(hcl) = 36,5 m(agno3) : n(hcl) = 5: 1 cu(no3)2 + 2naoh = cu(oh)2 + 2nano3 n(cu(no3)2) : n (nsoh) = 1: 2 m(cu(no3)2) = 187,5 m(naoh) = 2* 40 = 80 m(cu(no3)2): m(naoh) = 2: 1