Study Guide for Weekly Extra Credit

Topics to be Studied for Weekly Chemistry Extra Credit

Metric System

volumes

lengths

masses

temperature scales

Scientific Notation

standard format

multiplying without calculator

dividing without calculator

Significant figures

leading zeros

classroom guidelines (use three)

Atoms

Structure

protons

neutrons

electrons

nucleus

Daltons idea of the atom

Atoms do not change in a chemical reaction

Atoms join to form molecules

Classifications of Matter

mixture

pure substance

State of matter

solid

liquid

gas

Chemical formulas

ionic

molecular

Mole

representative particles

molecules

atoms

formula units

Avogadro’s number

value

used for counting representative particles

Conversions

to count

to mass

to volume

Chemical equations

reactants and products

balancing equations

types of reactions

conservation of mass