Idon't know where to start with this
which salt is produced by adding aqueous ammonia to aqueous sulphur dioxide until just
alkaline?
a nh4so3 b nh4so4 c (nh4)2so3 d (nh4)2so4

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.

When an experimenter draws a conclusion that he assumes will apply to all situations set up similarly to his test situation, even though he cannot possibly have examined all possible test scenarios, the experimenter is using deductive reasoning inductive reasoning abductive reasoning subjective reasoning

How can the number of core electrons be determined from the periodic table