Indicate whether each of the following statements is correct or incorrect.1)every bronsted-lowry acid is also a lewis acid2)every lewis acid is also a bronsted-lowry acid.3)conjugate acids of weak bases produce more acidic solutions than conjugate acids of strong bases.4)k+ ion is acidic in water because it causes hydrating water molecules to become more acidic.

1) correct

2) incorrect

3) correct

4)incorrect

Explanation:

1) A Lewis acid is a substance that accepts a nonbonding pair of electrons.

A Bronsted-Lowry acid is a substance that donates a proton H⁺

Since the donation of a proton involves the acceptance of a pair of electrons, every Bronsted-Lowry acid is also a Lewis acid.

2)A Lewis acid not necessarily needs to have a proton to be donated.

3) Conjugated acids of weak bases are strong acids and conjugated acids of strong bases are weak acids.

4)K⁺ comes from a strong base, therefore is does not have an acidic behaviour.

pure substance: iron,copper

impure substance: water,charcoal

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.