Science 10: CHEMISTRY Review Questions

Transcription

1 Science 10: CHEMISTRY Review Questions Chemistry Vocabulary acids, atomic number, atoms, bases, Bohr diagrams, bromothymol blue, catalyst, combustion, compounds, concentration, conservation of mass, covalent bonding, decomposition, electron, indigo carmine, inorganic, ionic bonding, ions, isotope, Lewis diagrams, light, litmus paper, mass number, methyl orange, molecules, neutralization (acid base), neutron, organic, phenolphthalein, polyatomic, proton, salts, single and double replacement, surface area, symbolic equations, synthesis, valence electron Goal 1: Understand and interpret Bohr models and Lewis diagrams of atoms, molecules and compounds know the three subatomic particles-,,, their properties (charges, sizes etc) and where they are in the atom be able to identify and give examples of ionic bonding, which is when a bonds with a non- metal - write the names of three ionic compounds using the following metals : sodium, calcium, and copper II and the non- metal chlorine Example Provincial Question: Draw and interpret Bohr models, including protons, neutrons, and electrons, of * atoms (neutral) * ions (charged) * molecules with covalent bonding (e.g., O 2, CH 4 ) * ionic compounds (e.g., CaCl 2 ) 1

2 Use periodic table and models to identify valence elections Write the number of valence electrons for the following atoms: Calcium, Oxygen, Neon, Lithium, Chlorine Use Lewis diagrams to: o Find paired and unpaired electrons for atoms o Find lone pairs and bonding paired electrons o represent simple ionic compounds and simple covalent compounds 2

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4 Goal 2: Acids and Bases! Identify, name and describe the properties of acids and bases *REMEMBER YOU WILL BE GIVEN ALL THE INFORMATION ABOUT THE ph SCALE AND INDICATORS IN YOUR DATA BOOKLET If you are given a base or acid, interpret how that will change and indicator. Or if you are given the colour of and indicator identify if an acid or base is present! 4

5 Be able to identify formulae and properties as acids, bases and salts Recognize common names of acids Write the formulae for the following acids Hydrochloric acid, Sulphuric acid, Nitric acid, Acetic 5

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7 Goal 3: Understand and identify organic and inorganic compounds Know how to identify, classify and give properties of families of metals and non- metals o alkali metal, alkaline earth metal, halogen, and noble gas groups Know that metal oxides form basic solutions and non- metal oxides form acidic solutions 7

8 Be able to use the periodic table and a ions list (ie. polyatomic ions) to name and write chemical formulae for common ionic compounds convert names to formulae and formulae to names for covalent compounds, using prefixes up to deca *REMEMBER THE PREFIXES ARE PROVIDED IN THE DATA BOOKLET Recognize organic and inorganic compounds, based on their chemical structures/name/chemical formula/ diagram or model 8

9 Goal 4: Understand and Apply the Law of Conservation of Mass Know that the number of atoms in the reactants will always equal the number of atoms in the products Balance equations by placing coefficients (numbers ) before the formulae in a reaction Identify reaction types and predict the products if needed * synthesis (combination) * decomposition * single and double replacement * neutralization (acid/base) * combustion 9

10 Know what factors affect the rate of a reaction (temperature, concentration, catalysts, surface area) 10