1
What type of bond involves the transfer of electrons from one atom to another, usually between metals and nonmetals?
Ionic Bond
How can water be separated into its elements?
electrolysis
What does ppm stand for?
parts per million
Do strong acids ionize more or less than weak acids in water to form hydroium ions?
nope
strong acids ionize more that 99% in water to form hydronium ions
weaks acids ionize less than 50%
What are the 3 types of techonology?
industrial, commercial, & consumer
Which atomic model describes electrons as existing in fixed energy levels around a nucleus?
Bohr model
What is the weakest intermolecular force that can exist between two molecules?
LDF
What is the process of decreasing the concentration of a solution by adding more solvent?
dilution
What is the purpose of indicators?
to estimate the pH of a solution
What are spectator ions?
substances that are the same on either side the balances chemical reaction
What kind of change happens in the nucleus resulting in a new atom?
nuclear change
In a hydrogen bonding, dipole-dipole force occurs between a molecule with hydrogen and another molecule with oxygen, carbon, or fluorine. True or False.
false
One molecule needs to have H2 and the other has to have either O2, F2, or N2
Fill in the blank
Electrolytes are aqueous solutions that contain dissolved ____________.
ions
How many decimal places should the answer have when calculating pH of a solution with the [H3O-(aq)] concentrations being 5.09?
the # of sig figs for the [H3O-(aq)] concentration = # od decimal places for the final answer for pH
[H3O-(aq)] = 5.09
pH = 8.128305162 x 10-6
5.09 = 3 sig figs therfore 3 decimal places in final answer
pH = 8.128
it is the same for pOH
On a titration graph, on which axis is the volume of the titrant plottted?
x-axis
What does the atomic number of an atom represent on the periodic table?
number of protons and electrons in the atom
What thoery states that equal volumes of gasses at the same temperature and pressure contain equal numbers of particles or molecules?
avogadro's thoery
What is a saturated solution
a solution that contains the maximum amount of dissolved solute at specific conditions
What term is used to describe substances that can act as an acid and a base?
amphiphoteric
What is the siginificance of the equivalence point?
point in the titration where neither of the reactants are in excess
What theory states that matter is made up of atoms that consist of 3 subatomic particles?
atomic theory
What is the study of molecules in 3D?
stereochemistry
Define exothermic in simple words.
to release energy into the surrounding area
Who assumed that oxygen was responsible for acid properties?
Antoine Lavoisier
Name two characteristics of a titration graph where a strong acid is titrated with a weak base.
Low initial pH
No steep rise in pH
equivalance point < 7
1 buffering region
High final pH