Какой осадок? naoh+nacl= naoh+na2co3= naoh+na2so4= naoh+na2so3= naoh+na2s= naoh+na3po4= naoh+nai= naoh+nabr= naoh+cuso4*5h2o= naoh+naoh= naoh+hcl=
107
405
Ответы на вопрос:
M(r) = 29 * 2 = 58 г/моль n(c) = (58*82.76)/1200 = 4 n(h) = (17.24*58)/100 = 10 c4h10 — бутан
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