Does silicon-32 has a half-life of 170 years and can be used to find the age of rocks it is contained in.

Silicon-32's half-life is actually 710 years.

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

Answer (b) supersaturation;