1) <span>6HNO3 (конц.) + S = H2SO4 + 6NO2↑ + 2H2O
2) </span><span><span>3Br2 + S + 4H2O = H2SO4 + 6HBr
</span><span><span>3) 2HBrO3 + H2O + S = HBr + H2SO4</span>
</span><span>4) 3I2Cl6 + 4S + 16H2O = 4H2SO4 + 6HI + 18HCl</span></span>
S + O2 = SO2
n(S) = n(SO2)
n(S) = m/M=300г/32г/моль = 9.375 моль
m(SO2) = nM=9.375 моль*64г/моль=600г
2K+2HCl = 2KCl + H2
2K+2H2O = 2KOH + H2
2K+H2 = 2KH
4K+O2 = 2K2O
Как я понял , так и сделаю
1. 2 C2H2 --> C4H4
2. C4H4 +3H2 --> C4H10
C4H10 +HBr --> CH3-CHbr-CH2-CH3
CH3-CHbr-CH2-CH3 +KOHспирт ---> CH2=CH-CH2-CH3
CH2=CH-CH2-CH3 +H2O ---> C4H9OH
H3PO4+3ÀgÑO3=3HNO3+AgPO4. AgPO4=2.8г