Question 15 (1 point) Identify the Lewis base in the following reaction.
Co2+ (aq) + 4C1- (aq) = Coc12-(aq)
a) Co2+
b) CV-
c) Coci,2-
a
a
Ooo
b
b
c
с

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Which action would reduce the activation energy of a chemical reaction? a. adding a catalyst to the reaction b. adding more reactants to the reaction vessel c. lowering the potential energy of the products d. lowering the potential energy of the reactants e. raising the temperature of the reaction

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 30° f. after one-half minute the thermometer reads 50° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.)