Science 10

CHEMISTRY MID POINT TEST

Science 10 

Things you should know for the exam. NOT all of this information will be covered, but if you understand these concepts you should do well!

·         What does WHMIS stand for? What is the purpose of WHMIS?

·         What does HHPS stand for? How are hazards and degree of hazards represented in that particular system?

·         What is an MSDS? What information (in general) is found on an MSDS?

·         WHMIS symbols

·         What is the scientific method? How is it generally sequenced in a scientific experiment?

·         What are the characteristics of a good hypothesis?

·         What is a manipulated (independent) variable? What is a responding (dependent) variable? What is the difference between the two?

·         What is a controlled variable?

·         What is the difference between a quantitative observation and a qualitative observation?

·         Can you identify flaws with a particular experimental design?

·         What exactly are physical properties of matter? Provide examples

·         What exactly are chemical properties of matter? Provide examples

·         What is a pure substance? Examples

·         What is a mixture? Examples

·         What is the difference between elements and compounds?

·         What is the difference between solutions, mechanical mixtures, suspensions and colloids?

·         What is meant by the terms homogeneous and heterogeneous?

·         What is a chemical change? What do we use as evidence of a chemical change? Examples of chemical changes

·         What is a physical change? Examples

·         Basic History of chemistry

o   How did understanding develop in this area over time? How did we use substances to suit our needs in the past? How did this add to our overall understanding of chemistry?

·         Atomic Theory

o   Democritus

o   Aristotle

o   John Dalton “Billiard Ball”

o   JJ Thomson “Plum Pudding”

o   Ernest Rutherford “Planetary Model”

o   Neils Bohr “Bohr Model”

o   Quantum Mechanical Model

·         What is a subatomic particle?

o   Protons vs. Neutrons vs. Electrons… What are some characteristics of these three? Where are they found? What is their symbol? What is the charge of each?

·         Periodic Table of Elements

o   What is an atomic number? What does this number tell us about an element?

o   What is the atomic mass (mass number) of an element?

o   What information can be gathered by knowing the mass number and the atomic number of an element?

o   What are the three main groupings of elements on a periodic table?

§  What are some characteristics of these particular elements?

o   What are groups on a periodic table? What are some examples? What makes them similar?

o   What are periods on a periodic table? What makes them similar?

·         What is an isotope?

·         What is valence energy level?

·         What are valence electrons? Why are they so important?

·         What is the difference between an atom and ion?

·         How/why are ions formed?

·         Can you locate Akali metals, Akaline Earth Metals, Transition metals, Lanthanides, Actinides , Halogens, Noble Gases?

·         What is an ionic compound? How are they formed?

·         Do you know how to name ionic compounds correctly? Chemical Formula to IUPAC name? Vice versa?

o   Binary, multivalent, polyatomic?

·         Why do we have to balance ionic compounds in our formula?

 The test will consist of 20-25 MC, 5 True/ False questions, and a couple short answer questions. (HINT: I may have mentioned some possible test questions in class)