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Chemistry Review

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Saved by melamcco@fc.amdsb.ca
on June 7, 2014 at 9:21:00 am


1D Chemistry Exam review

1.    Explain how a physical change differs from a chemical change.
2.    State the 5 signs or indicators of a chemical change ***
3.    Name two physical changes and explain how you know they are physical changes.***
4.    Name two chemical changes and explain how you know they are chemical changes. ***
5.    Define the following terms; dissolving, burning
6.    Explain the difference between a solution and  mechanical mixture.
7.    Explain the difference between
    i) atoms & molecules                ii) elements & compounds        
iii) chemical symbol & chemical formula        iv) homogeneous & heterogenous
v) molecular and ionic compounds            vi) qualitative & quantitative
8.  State the type and number of atoms that make up each of the following molecules
    a) NaCl         b) H2SO4    c) Al(NO3)3        d) (NH4)3PO4        e) CH3COOH

9.  Complete the following chart that describes the particles making up an atom.
Particle    Symbol    Mass    Charge    Location

10.  State the number of protons, neutrons, and electrons in each of the following:
        27        31            40            14
        13Al        15P            19K             7 N

11.  Draw a Bohr-Rutherford diagram for each of the atoms in the question above.
12. What is the trend in valence as you go across the Periodic table? as you go down the periodic table?
13.  What is the trend in atomic size as you go across the PT and as you go down the PT.
14. Where are metals found on the Periodic table? Where are non-metals found on the Periodic table? Identify each of the elements in question 23 as a metal or non-metal.
15.  What is the trend for the valence electrons in terms of stability and reactivity across the periodic table? down the periodic table?
16.  Where are the chemical families found on the periodic table?  Halogens, Noble Gases, Alkali metals, Alkali earth metals, metalloids, transition metals.
17.  Describe the use of various elements based on their chemical and physical properties.****


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