December 5th, 2009
Double Replacement Reactions Lab
In this lab, we discovered the chemical reactions created when two different
substances are paired with a different reactant. There were ten different substances, thus
making different produc
Top number: Protons and Electrons (same amount) = atomic number
Bottom number: Neutrons = mass number
Subtract Top number from bottom number to get amount of neutrons
Isotopes are one of two or more atoms with the same atomic number but with different num
Atomic Number: Number of protons.
Atomic mass: Number of protons and neutrons.
Protons: In nucleus, positively charged.
Neutrons: Neutrally charged, found in nucleus.
Electrons: Negatively charged, found out side of nucleus in ELEC
January 15, 2009
Specific Heat Lab
In this lab, we determined the specific heat capacity of an unknown
substance we were given. We used the relationship between Heat lost equals
heat gained or Qlost=Qgained. We also used the equa
March 5, 2009
Emission Spectrum of Hydrogen Lab
Purpose of the Lab:
In this lab, we viewed the visible portion of the emission spectrum of
hydrogen by using a spectroscope. We discovered that due to the energies of
photons, created by when an
Midyear Study Guide
Scientists and Philosophers Democritus: Democritus proposed that matter is made up of atoms. He called them Atoma which
is Greek for atoms.
Aristotle: Aristotle proposed that matter is made up of four elements; earth, wind,
Chemistry Study Guide
Classification of matter:
Is the composition Uniform?
yes: pure substance no: Mixture
Homogeneous: looks the same throughout
Heterogeneous: does not look the same throughout
Properties and Changes of Matter:
Ionic and Covalent bonds
Naming binary ionic compounds with single valent cation:
cation: same as before
second element: ends in ide
Naming binary ionic compounds with multivalent cation:
first element stays the same
roman numeral comes after it