Chemistry+Review+Questions

toc

=EXAM REVIEW: CHEMISTRY=

PART 1: SAFETY SYMBOLS
A. Label the following safety symbols with their correct name.







B. What are the shapes for the following HHPS symbols:


 * Warning ||  || Caution ||   || Danger ||
 * [[image:clip_image015.png width="146" height="110"]] ||  || [[image:clip_image015.png width="146" height="110"]] ||   || [[image:clip_image015.png width="146" height="110"]] ||

C. Name the following safety symbols:


 * || [[image:clip_image017.jpg width="71" height="72" align="left"]] ||  || [[image:clip_image019.png width="84" height="84" align="left"]] ||   || [[image:clip_image020.png width="75" height="75" align="left"]] ||   || [[image:clip_image021.png width="75" height="66" align="left"]] ||
 * || [[image:clip_image022.png width="134" height="2"]] ||  || [[image:clip_image023.png width="146" height="2"]] ||   || [[image:clip_image023.png width="146" height="2"]] ||   || [[image:clip_image023.png width="146" height="2"]] ||
 * || [[image:clip_image022.png width="134" height="2"]] ||  || [[image:clip_image023.png width="146" height="2"]] ||   || [[image:clip_image023.png width="146" height="2"]] ||   || [[image:clip_image023.png width="146" height="2"]] ||

PART 2: CHEMISTRY
1a. What is matter?

1b. What are the 3 states of matter?

2a. What is a physical change?

2b. What are the 3 ‘clues’ that a physical change has taken place?

3a. What is a chemical change?

3b. What are the 5 ‘clues’ that a chemical change has taken place?

4. Decide whether the descriptions below are examples of a physical change (P) or chemical change (C).

ice melting baking a cake cutting carrots a fire burning a firecracker exploding breaking glass a car rusting mixing salt and pepper

5a. Complete the table below of physical properties:


 * **PHYSICAL PROPERTIES** ||
 * **PROPERTY** || **MEANING** || **EXAMPLE** ||
 * Hardness ||  ||   ||
 * Malleability ||  ||   ||
 * Solubility ||  ||   ||
 * Ductility ||  ||   ||
 * Melting/Boiling Point ||  ||   ||

5b. Complete the table below of the chemical properties:


 * **CHEMICAL PROPERTIES** ||
 * **PROPERTY** || **MEANING** || **EXAMPLE** ||
 * Combustibility ||  ||   ||
 * Reaction with Acid ||  ||   ||
 * Corrosion ||  ||   ||

6. List the 5 Points of the Particle Theory of Matter.

i) ii) iii) iv) v)

7. Complete the following chart with respect to the Particle Theory of Matter:

|| **Space Between Particles** || **Attraction Between Particles** || **Motion of Particles** ||
 * **SOLID** ||  ||   ||   ||
 * **LIQUID** ||  ||   ||   ||
 * **GAS** ||  ||   ||   ||

8. Using the terms given below, complete the following sentences related to gas tests.

burst into flame cobalt chloride turn cloudy hydrogen pink pop carbon dioxide glowing

a) When testing for _ gas, a flaming splint will . b) When testing for oxygen gas, a splint will. c) When testing for _ gas, limewater will _. d) When testing for water vapour, will turn a pretty colour of.

9. Complete the following classification of matter table.


 * **CLASSIFICATION OF MATTER** ||
 * **Type of Matter** || **Explain what this is** || **Heterogeneous or Homogeneous?** || **Example** ||
 * Solution ||  ||   ||   ||
 * Alloy ||  ||   ||   ||
 * Mechanical Mixture ||  ||   ||   ||
 * Colloid ||  ||   ||   ||

10a. Write the symbol for the following elements:

_ carbon _ potassium _ nitrogen _ calcium _ boron _ helium _ sodium _ beryllium

10b. Write the name of the element for the following symbols:

Li _ K _ Al _ S _ Ne _ Si _ H _ O _

11. Using your periodic table, put the following elements into standard atomic notation.

a) Potassium b) Fluorine c) Aluminum

12. Draw Bohr diagrams for the following elements.


 * Nitrogen || Sodium || Chlorine ||

13. Complete the following chart.

symbol** ||~ **Atomic number** ||~ **Mass number** ||~ **# of protons** ||~ **# of electrons** ||~ **# of neutrons** ||
 * ~ **Element** ||~ **Element
 * ||  || 7 ||   || 7 ||   ||   ||
 * Lithium ||  ||   || 7 ||   || 3 ||   ||
 * Beryllium ||  ||   ||   ||   ||   ||   ||
 * || S ||  ||   ||   ||   ||   ||
 * Argon ||  ||   || 40 ||   ||   ||   ||
 * Silicon ||  || 14 ||   ||   ||   || 14 ||

14a. Protons have a charge. 14b. Electrons have a charge. 14c. Neutrons have a charge of.

For the following question, describe the location of the 3 subatomic particles

15a. Protons are found 15b. Electrons are found 15c. Neutrons are found

16. Complete the following charts on counting atoms.

a) Na2CrO4 b) 2K2S c) 4Mg(NO3)2
 * Element || # of Atoms ||


 * Element || # of Atoms ||


 * Element || # of Atoms ||

//Questions 17 and 18 refer to the Periodic Table of Elements.//

17a. Vertical columns are called _ 17b. Horizontal rows are called _ 17c. Metals are found on the _ side. 17d. Non-metals are found on the _ side. 17e. Transition metals are found in groups _.

18a. Elements found in group 1 (IA) are called _ 18b. Elements found in group 2 (IIA) are called _ 18c. Elements found in group 17 are called _ 18d. Elements found in group 18 are called _

19. What does the term ‘stable octet’ mean?

20. What group of elements on the periodic table have a stable octet?