Chemistry Basics
This is the basic unit of all matter
Atoms
These are the 3 subatomic particles.
Protons, neutrons, and electrons
The term neutral indicates that a substance has a pH of...
7
What REDOX stands for
Reduction and Oxidation
The substance used to determine when to stop an acid-base titration
indicator
The process by which atoms or groups of atoms in substances are reorganized into different substances.
A chemical reaction/change
An element that exists naturally as a diatomic molecule
Substances with pH below 7.
Acids
Electrode where reduction occurs
Cathode
Represents when the acid and base have reacted in exactly the correct mole ratio
Equivalence point
The energy needed to get a chemical reaction to proceed.
Activation energy
The charge formed by a group 2 element when it becomes an ion
2+
In a salt water solution, this is the solute.
salt
The charge of Mn in KMnO4
+7
Represents when an acid-base titration was actually stopped.
End point
A pure substance made up of only one kind of atom.
Element
A 'bond' (intermolecular force) that forms between the hydrogen atoms of one water molecule and the oxygen atom of another.
Hydrogen bond
This term means a substance that can act as both an acid and a base
Amphiprotic
An atom that has an oxidation number change from 0 to +3 has been...
oxidised
On a titration curve, this is the relatively flat region before the steep vertical rise
The elements present in a glucose molecule
carbon, hydrogen, oxygen
In this type of reaction, energy is released.
Exothermic
Base = proton acceptor
oxygen (O2)
The point at which the pH of the solution is equal to the pKa of the weak acid
Half equivalence point