Ethylamine and hydrogen bromide. gives oft
gives off
CHỊCH NH(g)
HBr(9)
B
cotton wool soaked in
Conc, hydrobromic acid
cotton wool soaked in
ethylamine(aq)
predict at which position A, B or C the white solid will form explain your choice

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.