BIOLOGY [5090] SYLLABUS



CHEMISTRY A - REVISION GUIDE for Final Examination

INTRODUCTION:

This revision guide is designed to help you prepare for the final examinations. It is based on Indiana’s Academic Standards for Science – Chemistry.

HOW TO USE THIS REVISION GUIDE:

1. This guide contains the list of the topics in your syllabus.

2. Do an assessment and rate yourself in terms of your present mastery of the

subject matter on a scale of 1 to 3 as follows:

|1 |very good; you are comfortable with the topic & you feel you can manage questions on this topic even if you did little|

| |or no further revision; you may just need to have a final read through of the topic in your class notes; writing a|

| |topic summary is a task you can easily do |

|2 |good; you feel you can manage questions on this topic although some revision prior to the exam may help or is |

| |necessary; you need to have a read through of the topic in your class notes and course work and write summary notes to|

| |increase your confidence on the topic; you may then need to go over your summary notes at least twice or thrice before|

| |the examination |

|3 |poor; you feel you are not comfortable with this topic and you therefore need to work on it; this means you need to |

| |go over your class notes and coursework and find time to revise some more |

3. How to do a topic summary: After you have read through the topic [use a highlighter pen

to mark topic highlights]

✓ write down the principles / theories

✓ outline key terms and definitions

✓ note important examples / illustrations / diagrams

✓ label important diagrams

NOTE: REMEMBER THAT YOUR TEACHER IS LOOKING FOR OPPORTUNITIES TO GIVE YOU MARKS – NOT TAKE THEM AWAY!

| | |MASTERY |

| | |OF TOPIC |

|TOPIC / CONTENT |LEARNING OBJECTIVES |1 |

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|Standard 3: | | |

|BONDING AND MOLECULAR STRUCTURE |Describe, compare and contrast the characteristics of the interactions between atoms in| |

| |ionic and covalent compounds. | |

|Core Standards: | | |

| |Compare and contrast how ionic and covalent compounds form. | |

|Describe how the configuration of | | |

|electrons within an atom |Draw structural formulas for and name simple molecules. | |

|determines its interactions with | | |

|other atoms. |Write chemical formulas for ionic compounds given their names and vice versa. | |

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|Describe the attractive forces |e.g. | |

|among molecules and their effect |1. Define the following terms: | |

|on chemical and physical |(a) cation | |

|properties. |(b) anion | |

| |(c) ionic compound | |

| |(d) covalent compound | |

| |(e) polyatomic ion | |

| |(f) molecules | |

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| |Complete the following table by writing the formula and naming each compound formed: | |

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| |NH4+ | |

| |Na+ | |

| |Ca2+ | |

| |Al3+ | |

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| |OH- | |

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| |SO42- | |

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| |Cl- | |

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| |O2- | |

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| |NO3- | |

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| |What is the Octet Rule? | |

| |Show by way of a diagram the formation of magnesium chloride. | |

| |Show by way of a diagram the formation of methane. | |

| |Name the following compounds: | |

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| |Formula | |

| |Name | |

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| |NH3 | |

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| |CH4 | |

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| |H2O | |

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| |HCl | |

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| |H2SO4 | |

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| |HNO3 | |

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| | |MASTERY |

| | |OF TOPIC |

|TOPIC / CONTENT |LEARNING OBJECTIVES |1 |

| | |2 |

| | |3 |

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|Standard 3: | | |

|BONDING AND MOLECULAR STRUCTURE |RULES FOR NAMING IONIC COMPOUNDS | |

| |1. Binary Compounds | |

|Core Standards: |A compound that contains only two elements is called a binary compound.. | |

| |The name of a binary compound usually ends with IDE. | |

|Describe how the configuration of |If the compound contains a metal and a non-metal, the metal is always named first | |

|electrons within an atom |followed by the name of the non-metal with the ending changed to IDE e.g. CaO is | |

|determines its interactions with |calcium oxide and Na2O is sodium oxide, MgS is magnesium sulfide, KCl is potassium | |

|other atoms. |chloride. | |

| | | |

|Describe the attractive forces |2. Compounds of Transition Metals | |

|among molecules and their effect |For a compound of an element that can form two or more ions with different charges, a | |

|on chemical and physical |roman numeral is written after the name of the element to indicate the charge of the | |

|properties. |ion in the compound e.g. FeCl2 is named iron (II) chloride while FeCl3 is named iron | |

| |(III) chloride. | |

|. | | |

| |3. Bases and Alkalis | |

| |A compound that contains a metal and the hydroxide ion, (OH-), has a name ending with| |

| |hydroxide e.g. NaOH is sodium hydroxide, Al(OH)3 is aluminium hydroxide. | |

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| |RULES FOR NAMING COVALENT COMPOUNDS | |

| |1. Binary Compounds | |

| |If the compound contains 2 non-metals which belong to the same group of the Periodic | |

| |Table, the one which is lower down the group is named first, followed by the name of | |

| |the second non-metal with the ending changed to IDE e.g. for a compound of sulphur and | |

| |oxygen, the name is sulphur oxide because sulphur is lower in Group VI of the Periodic | |

| |Table than oxygen and so is named first. | |

| |If the compound contains two non-metals which belong to different groups of the | |

| |Periodic Table, the one with the smaller group number is named first, followed by the | |

| |name of the second non-metal with the ending chaged to IDE e.g. for a compound of | |

| |carbon and sulphur, the name is carbon sulphide because carbon is in Group IV while | |

| |sulphur is in Group VI. | |

| |Water (H2O) and ammonia (NH3) are two exceptions. They are always known by their | |

| |common names. Dihydrogen oxide and trihydrogen nitride are never used. | |

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| |2. Use of prefixes | |

| |If two or more compounds can be formed between two particular elements, a prefix (e.g. | |

| |mono – 1; di – 2; tri – 3; tetra – 4; etc ) is written in front of the name of one | |

| |of the elements to show the number of atoms that is present in the compound e.g. CO is | |

| |carbon monoxide while CO2 is carbon dioxide; SO2 is sulphur dioxide while SO3 is | |

| |sulphur trioxide; CS2 is carbon disulphide. | |

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