Question

Решите химию!!!!!!!!!!!!!!!

Answer 1

Ответ:

SO3+H2O-->H2SO4

BaO+SO3-->BaSO4

CaO+H2CO3-->CaCO3+H2O

Na2O+H2O-->2NaOH

SO2+2KOH-->K2SO3+H2O

N2O5+2KOH-->2KNO3+H2O

2)

2Fe(OH)3-->Fe2O3+3H2O

Fe2O3+3H2SO4-->Fe2(SO4)3+3H2O

S+O2--->SO2

SO2+H2O-->H2SO3

H2SO3+2NaOH-->Na2SO3+2H2O

3)

дано

m(N2O5) = 20 g

+H2O

------------------------

m(HNO3)-?

N2O5+H2O-->2HNO3

M(N2O5) = 108 g/mol

n(N2O5) = m/M = 20 / 108 = 0.185 mol

n(N2O5) = 2n(HNO3)

n(HNO3) = 2* 0.185 = 0.37 mol

M(HNO3) = 63 g/mol

m(HNO3)  = n*M = 0.37 * 63 = 23.31 g

ответ 23.31  г

Объяснение: