What can scientists learn from the sequence of rock layers?

Nonmetals usually react by gaining electrons

A1 a 2 a 3 ooh lol i think that's it

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

Reaction type : double replacement hcl + lioh = h2o + licl