How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
A&P Ch 2 Chemistry
Energy stored in the bonds of chemical substances
the number of protons which determine the chemical properties and its place in the periodic table
total mass of the protons and neutrons in an atom, measured in atomic mass units
average of the mass numbers of all isotopes
a substance made up of atoms of two or more different elements joined by chemical bonds
are substances composed of two or more components physically intermixed : the basis type : solutions, colloids and suspensions
combination of two or more atoms held together by chemical bonds
are homogeneous mixtures of components that may be gases, liquids, or solids.
called emulsions, are heterogeneous mixture, which means that their composition is dissimilar in different area of the mixture
are heterogeneous mixtures with large, often visible solutes that tend to settle out. ex.sand and water
The sum total of all processes in an organism which use energy and simple chemical building blocks to produce large chemicals and structures necessary for life
The sum total of all processes in an organism which break down chemicals to produce energy and simple chemical building blocks
one of two or more atoms with the same atomic number but with different numbers of neutrons
an unstable isotope of an element, which undergoes radioactive decay
Four elements that form the bulk of the body
carbon , oxygen , hydrogen, and nitrogen make up 96% of body weight
smallest particle of an element
protons, neutrons, and electrons
positively charged particles located in the nucleus
are neutral , so the nucleus is positively charged overall
negatively charged particles found outside the nucleus