raspunsul corect este c) . uite si rezolvarea
1g/cm3=1000g/l
1000ml=1l
p=ms/V1=p*V=1000 g/l*1l=1000g
= ms2=0.5l*1000g/l=500g
c1=md*100/ms1
=md1=c1*ms/100
md1=0.9*1000/100
md2=c2*ms2/100
md2=5*500/100
deci
md1=9g
md2=25
sper ca te-am ajutat . coroana ??