Module 2 - Chapter 2 Flashcards

Flashcards covering the key concepts from Module 2 Chapter 2, including atomic structure, pH scale, and buffers.

All substances consist of __.

atoms

An atom consists of

Electrons, protons, and neutrons

A proton has a __ charge.

positive (+)

A neutron has __ charge.

no

An electron has a __ charge.

negative (-)

__ are forms of an element that differ in the number of neutrons.

Isotopes

The pH scale runs from to .

0, 14

The pH scale measures the or of a solution.

acidity, alkalinity (basicity)

Acidic substances release __ ions.

H+

Acidic substances have a pH __ than 7.

less

Basic substances release __ ions.

OH-

Basic substances have a pH __ than 7.

greater

The pH range of human blood is __.

7.35-7.46

Buffers __ their pH.

stabilize

The bicarbonate buffer system is an example of a ___.

buffer