Chapter 2 Chapter Test Flashcards
Molecules are made of of particles called
Atoms
Positively charged particles within the nucleus of an atom
Protons
Electrons inhabit regions of the atom called
Energy levels
Substances sighing molecules having more than one kind of atom are called
Compounds
A _____ chemical bond occurs when atoms share electrons
Covalent
The symbol K+ represents the potassium
Ion
A compiling that dissociates in water to form ions is called
An electrolyte
Molecules that have a carbon-carbon bond
Organic
In saltwater salt is the solute and water is the
Solvent
When water is used to build up small molecules into larger molecules
Dehydration synthesis
Solutions that have an excess of hydrogen ions
Acid
Blood contains chemicals that help to maintain pH
Buffers
Example of glycogen
Carbohydrate
Example of collagen
Protein
Example of RNA
Nucleic acid
Example of cholesterol
Lipid