So3+H2o→H2 So4
identify the nature of this reaction
helpp please i'm such a failure​

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

The rules of engagement (roe) working group is often used to (select all that apply.)

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false