Question

...+...=Ba(OH)2
...+...=H2CO3
...+...=LiOH
...+...=HNO3
...+...=H2SO3
...+...=Ra(OH)2 ​

Answer 1

Ba+2OH= Ba(OH)

CO2+H2O=H2CO3

li2o+h2o=lioh

no2+o2+h2o=hno3

только большими