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i have a few questions but even if you can answer just one will be so

1. which of the following definitions focuses on the transfer of an electron pair?
i. arrhenius
ii. brønsted-lowry
iii. lewis

a. ii
b. ii and iii
c. iii
d. i, ii and iii

2. which property describes an acid but not a base?

a. dissociates into ions in solution
b. reacts with pure metals
c. tastes bitter
d. can change the color of plant-based dyes

3. ca(oh)2 can be classified as which of the following?

a. arrhenius base
b. brønsted-lowry base
c. lewis base
d. all of the above