Answer:
Db
Dubnium/Symbol
Explanation:
please mark my answer in brainlist plz
Salt: NaCl
Hydrogen gas: H2
Answer:
not quite sure what you meant by the question but I think the answer you're looking for is biomass? not sure though
The number of moles of one substance given the amount in mass can be calculated by the use of the molar mass. This is the mass of a compound per 1 mol of the said substance. For, KCl the molar mass is 74.55 g/ mol
148 g / 74.55 g/mol = 2 mol KCl
Hope this answers the question. have a nice day.
