Предмет: Химия, автор: lakizukaleksandr

помогите пожалуйста решить 4 и 7 задачи с полным решением пожалуйста

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Автор ответа: aruzanserzankyzy6

0

MN+HCL=2MN+3HCL2

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lakizukaleksandr: шо зря вообще

lakizukaleksandr: я написал 4 и 7 задание

aruzanserzankyzy6: 3,9 г. Х г. Na2S. 2Na. =. +. S n=1 моль. п-2 моль. n=1 моль М=78 г/моль. М=23 г/моль. М=32 г/моль m=78 г. m=46 г. m=32 г 3,9 г. Na2S. -. X r. Na 78 г. Na2S.. 46 г. Na m(Na)=3,9*46/78=2,3 г 3,9 г. Na2S. -. Х г. Ѕ 78 г. Na2S. -. 32 г. Ѕ m(S)=3,9*32/78=1,6 г

aruzanserzankyzy6: 4 задание

lakizukaleksandr: вообще ничего не понятно что написано, напиши понятно дано и что найти и решение задачи

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