I think its C i don't know if i am right
Something that can not be undone. Like baking bread..cant be undone.
I think one of the signs is <span>water and salt are formed
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It would be 0.341 because if you add 0.229 and 0.112 it will be 0.341
159.3 g
mol= mass (g)/ molecular weight (g/mol)