Question

1)Cu ce cantitate de oxigen reactioneaza 240g Mg
2)Cu ce cantitate de apa reactioneaza 88g Co2?
3)Cu ce cantitate de sulf reactioneaza 60g H2
VA ROG AJUTOOOR​

Answer 1

Răspuns:

1

MMg=24g/mol

MO2=2×16=32g/mol

2×24g 32g

2Mg + O2 => 2MgO

240g xgO

x=240×32/2×24=calculează

2.

MH2O =2×1+16=18g/mol

MCO2=12+2×16=44g/mol

18g 44g

H2O +CO2=> H2CO3

yg 88g

x=88×18/44= calculează

3.

MS=32g/mol

H2=2×1=2g/mol

32g 2g

S + H2 => H2S

60g zg

z=60×2/32=calculează