1) Calcula a massa molecular das seguintes substâncias: Dados: MA - Na = 23 u; Cl =35,5 u; K = 39 u; H = 1 u; S = 32 u e O = 16 u
a) NaCl
b) KCl
c) NaOH
d) HCl
e) H 2SO 4
f) H 2O2) São dadas as seguintes substâncias: café C 8H 10N 4O 2

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?