Final Exam Review

Define by raising your hand the following things

QualitativeVs.

Quantitative

• What measurement would we take if the gradulated cylinder was this:

What do we mesasure with a graduated cylinder?

Accuracy vs.

Precision

•What is the formula for Percent Error?

•What are the rules for multiplying scientific notation?

• What are the rules for dividing scientific notation?

Is this correct? Why or why not?

60.2 x 103

What is this number in scientific notation?

0.000934

What is this number in scientific notation?

37430000

Which is an element, compound, mixture?

What two categories are pure substances?

• Element, Compound, Mixtures?

What does the kinetic theory of matter say?

• Hint: Gases

What happens to gases when they are in a confined contanier?

• What is 40ml in L?

What are different properties used for?

• Hint: melting point, boiling point, density…

Name some physical properties and changes

• Name some chemical properties and changes

• What gas law does this formula relate to?

• P1V1=P2V2

Which phase changes are exothermic?

Which phase changes are endothermic?

• Which phase of matter has a definite shape?

• Where are protons, neutrons, and electrons located?

What does the mass number incorporate?

• If two isotopes have masses 23 amu and 26 amu and the average atomic mass is 24amu. Which isoptope is more abudant?

What does the Bohr model represent?

• Why does atomic radius increase down a group?

• Which is larger? Na or Na1+

• Which is larger N or N3-

• What is the net charge on a particle if it has 79 protons, 80 neutrons, and 83 electrons?

What is the number of orbitals in a d sublevel?

• What does each group have in common?

What kind of elements are bonded in covalent bonds?

• What kind of elements are bonded in ionic bonds?

• Which atomic model looks like a planet going around the sun?

• Which experiment lead to the discovery of the proton?

• Which experiment lead to the discovery of a nucleus?

• Define half life

• What do electrons do in covalent bonding?

• What do electrons do in ionic bonding?

• Explain a polar bond

• What is an empirical formula? • How do you calculate that?

• If lead has a charge of 4+ and oxygen has a charge of 2-, what is the formula for lead (IV) oxide?

• What is percent composition?• How do you calculate that?

• What is the only thing that is NOT conserved in a chemical equation?

• What is the formula for percent yield?

• What is a perfect mixing ratio?

• What is molarity?

• Describe a single, double, and triple bond using the word electrons.