Unit 2 Study Guide Part 1

Cards (16)

What is Atomic Number?
The number of protons in an atom's nucleus
What is Atomic Mass?
The total number of protons and neutrons in the nucleus of an atom
Is Water a Polar or Nonpolar Molecule?
Polar
Polar Molecules have what region?
Partial Charged Region
Nonpolar molecules don't have?
Charged Regions
Hydrogen Bonds are responsible for what?
Properties of Water?
What is Cohesion?
The ability of water molecules to be attracted to other water molecules (same molecules)
What is Adhesion?
The attraction between the molecules of two different substances
What do Hydrogen Bonds form between?
Postive Hydrogen Atoms and Negative Atoms
What is Polarity?
When an entity contains two distinct and opposite poles that can either attract or repel each other
What is pH?
Used to measure the basicity and acidity of a Solution
What does pH stand for?
Potential of Hydrogen
What is a Buffer?
A solution that can resist pH change
What is the function of Buffers?
A chemical system that prevents a change in fluid pH by dampening the change in hydrogen ion concentrations
What is a solute?
A substance that is dissolved in a solution
What is a Solvent?
A substance capable of dissolving other substances.