1. S+O2=SO2
2.2SO2 + O2= 2SO3
3.SO3<span> + H2O</span><span>= H2SO4</span><span>
4. 2NaOH</span><span> + H2SO4</span><span>= Na2So4</span><span>+ 2H2O</span>
5. <span> Na2SO4+Ba(OH)2=BaSO4+2NaOH</span>
От кислотных дождей страдают памятники дома
Mr Al(oh)3=27+48+3=78г/моль
Mr Na2S2O3= 46+64+48=158
Mr Chcl3 = 12+1+106.5=119.5
Ca(oh)2= 40+32+2=74
Al(oh)j2=27+16+1+127=171
27÷171=0.15
17÷171=0.09
127÷177=0.71
K2so3=78+32+48=158
78÷158=0.49
32÷158=0.2
48÷158=0.3