snc2d chemistry practice test

CHEMISTRY TEST Name:____________________

/83Part A – Diagrams [ / 15 ]

1. Draw the Bohr-Rutherford diagram for Boron ( B ) using the long form version.

2. Draw the Bohr-Rutherford diagram for Carbon ( C ) using the short form version.

3. Draw the Bohr-Rutherford diagram for Calcium ( Ca ) using the short form version.

4. Draw a Lewis Dot Diagram for magnesium bromide.

5. Draw a Lewis Dot Diagram for calcium iodide.

Part B – Fill In The Blanks [ / 20 ]

Homogeneous Ionic compounds Chemical change MixtureElements Physical change Valence CatalystExothermic Ion Anion SynthesisTransition metals Decomposition Endothermic HydrogenSingle displacement Heat Water Kinetic

Use words from the word bank to fill in the blanks.

1. A ____________________ is made up of two or more different particles.

2. Something that is ____________________ is made up of only one type of

molecule.

3. Signs of a ________________________________________ are if a precipitate

forms, there is a temperature change, a color change, a gas forms or matter

changes.

4. The periodic table is a classification system for all ____________________.

5. The electrons found in the outer most shell are referred to as the

____________________ electrons.

6. An icecube melting is a ____________________ change.

7. An ____________________ is a changed atom that has gained or lost an electron.

8. ________________________________________ are composed of a metal and a

non-metal.

9. ________________________________________ usually have more than one

charge listed on the periodic table.

10. All acids contain ____________________ atoms.

11. In the ionic compound lithium fluoride, lithium is the cation and fluorine is the

____________________.

12. Dihydrogen monoxide is also known as ___________________.

13. A ___________________ reaction is a chemical reaction in which two or more

elements or compounds combine to form a single larger compound.

14. Molecules are always moving because they have ___________________ energy.

15. To make a reaction go faster, you add ___________________.

16. ______________________________________ is a chemical reaction in which

one element displaces another element or compound.

17. When a compound is broken down into elements or smaller compounds a

___________________ reaction has taken place.

18. ___________________ means something is releasing heat.

19. ___________________ means something is absorbing heat.

20. A substance that increases the rate of a chemical reaction but is not used up in the

reaction is called a ___________________.

Part C – True or False [ / 10 ]

Circle True or False for each question:

T F 01. Chemistry is the study of matter and the changes matter undergoes.T F 02. Matter is anything but water.T F 03. An example of a mechanical mixture is a salad dressing.T F 04. A light bulb lighting up is a physical change.T F 05. Wax dripping down a lit candle is showing a physical change.T F 06. Milk going sour in the fridge is a physical change.T F 07. The symbol on the periodic table for chlorine is CT F 08. Valence electrons are the innermost electrons in an atom.T F 09. Ionic bonds occur between either 2 positive or 2 negative atoms.T F 10. In a covalent bond, atoms share outermost electrons to achieve stability.

Part D – Equations [ / 10 ]

Balance these chemical equations:

1. Al + S Al2S3

2. Zn + O2 ZnO

3. Sn + Cl2 SnCl4

4. Ag + I2 AgI

5. P4 + I2 PI3

6. NH3 + HCl NH4Cl

Turn these equations into skeletons and balance them:

1. potassium carbonate + barium chloride potassium chloride + barium carbonate

2. magnesium bromide + lithium chloride lithium bromide + magnesium chloride

Part E – Short Answers [ / 20 ]

Write the formulas for the following compounds:

1. silicon dioxide __________

2. water __________

3. carbon disulfide __________

4. sulfur trioxide __________

5. ammonia __________

6. hydrogen peroxide __________

7. calcium bromide __________

8. beryllium oxide __________

9. magnesium nitride __________

10. aluminum sulfide __________

Write the names for the following compounds

1. Li2O __________________________________________

2. AlCl3 __________________________________________

3. Mg3P2 __________________________________________

4. CF4 __________________________________________

5. NH3 __________________________________________

6. Sn(ClO3)2 __________________________________________

7. Pb3(PO4)2 __________________________________________

8. H2CO3(aq) __________________________________________

9. H2SO4(aq) __________________________________________

10. K3PO4 __________________________________________

Part F – Multiple Choice [ / 8 ]

1. The name for the compound KCl is _____________.

a) potassium chlorate

b) potassium chloride

c) potassium hydrochloride

d) potassium chlorine

2. The name for the compound PbS is _____________.

a) lead sulfide

b) lead sulfate

c) lead (ii) sulfide

d) lead (iv) sulfide

3. Wood burning and becoming ash is a _________ change.

a) physical

b) chemical

4. A solid substance melting is a _________ change.

a) physical

b) chemical

5. A single displacement reaction is ____________.

a) a chemical reaction in which two or more elements or compounds

a) combine to form a larger compound.

b) a chemical reaction in which one element displaces another element or

b) compound

c) rapid reaction of a hydrocarbon with oxygen

d) a chemical reaction that occurs when elements in different compounds

d) exchange places to form two new compounds.

6. A double displacement reaction is ____________.




b) compound




7. A combustion reaction is ____________.




b) compound




8. The formula for the compound magnesium oxide is _____________

a) Mg1O1

b) Mg2O2

c) MgO

d) MgO2

snc2d chemistry practice test

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