Marc was told his dinner would be ready at 18: 00. he left his house at 12: 00 and traveled in his car at an average speed of 45 mph to his moms house 300 miles away. did marc make it in time for dinner

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

Qrepresents joules in the formula