Molecular and Formula Ma sses
Using atomic masses from the periodic table and a molecular formula, we can determine the
molecular mass, which is the mass in atomic mass units (amu) of an individual molecule.
molecular mass of H2O =
Elements and Compounds Extra Credit Assignment
1. Type of compound where electrons are gained or lost. Ionic
6. Symbol of magnesium. Mg
7. A radioactive metal. Uranium
10. Type of compound where electrons are shared betwee
Chapter 2: Chemistry
The Atomic Theory
Daltons Atomic Theory
1. Elements are composed of extremely small particles called atoms. All atoms of a given element
are identical, having the same size, mass, and chemical properties. The atoms of one element
Chapter 1: Chemistry
Chemistry is the study of matter and the changes that matter undergoes.
Matter is what makes up our bodies, our belongings, our physical environment, and in fact our universe.
Matter is anything that has mass and occupies space.
Separation of a Mixture
June 1, 2016
The purpose of the Separation of a Mixture lab was to calculate the percent composition of
NH4Cl, NaCl, and sand, which composed the mixture given.
Top loading balance
Coating Thickness of Cookies
July 2nd, 2016
The objective of the Coating Thickness of Cookies experiment was to calculate the thickness of
the chocolate coating on three separate cookies and to determine the new nutritio