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.