Question

mim ajuda a responder a 4,5,6,8,9

Answer 1

4)

1mol --- 12g
x----------30g

12x= 30
x= 2,5 Mol



5)

Cl2+ 2 NaOH--> NaCl+ NaClO+ H20

---------2------------1
---------4-------------x

2x= 4
x= 2



6)

2Al2O3+ 3C---> 3CO2+4Al

2--------------------------------4(27)

x---------------------------------54

108x = 108
x= 1mol de Al2O3

x= 102 gramas


8)


c= m/v


2,95g---- 1 litros
x-----------0,2 litros


x=0,59 g


9)