AIR AND COMBUSTION
Percentage of Oxygen in Air We have read that Air consists mainly of molecules of oxygen and nitrogen with important yet trace amounts of other gases. We know that the… Read More »AIR AND COMBUSTION
Chemistry
AN ALKALI
Alkali is pronounced like alcohol, with ‘lie’ at the end instead of ‘hol’. An alkali is any substance which produces OH– ions in water. OH– ions are called hydroxide ions. If… Read More »AN ALKALI
ACIDS, BASES AND INDICATORS
WHAT IS ACIDS, BASES AND INDICATORS? All the elements in nature fall into three classes: metals, non-metals and gases. Non-metals are also sometimes called metalloids. The compounds formed by combination… Read More »ACIDS, BASES AND INDICATORS
EVAPORATION AND BOILING
EVAPORATION AND BOILING (LIQUID TO GAS) On heating particles gain kinetic energy and move faster. In evaporation and boiling the highest kinetic energy molecules can ‘escape’ from the attractive forces… Read More »EVAPORATION AND BOILING
CAREERS IN CHEMISTRY
Chemists are the people who transform the everyday materials around us into amazing things. Some chemists work on cures for cancer while others monitor the ozone protecting us from the… Read More »CAREERS IN CHEMISTRY
INTRODUCTION TO CHEMISTRY
INTRODUCTION TO CHEMISTRY Chemistry is a branch of Science. Science is basically the study of living and non-living things. The branch of science that study living things is called Biology.… Read More »INTRODUCTION TO CHEMISTRY
CHEMISTRY SS 3 SCHEME OF WORK
CHEMISTRY SCHEME OF WORK FOR SS 3 CHEMISTRY SS 3- FIRST TERM 1. Petroleum or Crude Oil 2. Metals and their Compounds 3. Iron 4. Quantitative and Qualitative Analysis 5.… Read More »CHEMISTRY SS 3 SCHEME OF WORK
CHEMISTRY SSS 2 SCHEME OF WORK
CHEMISTRY SS 2- FIRST TERM 1. Periodic Table 2. Chemical Reactions 3. Mass, Volume Relationships 4. Acid-Base Reactions 5. Water. CHEMISTRY SS 2- SECOND TERM 1. Air 2. Hydrogen 3.… Read More »CHEMISTRY SSS 2 SCHEME OF WORK
SCHEME OF WORK FOR CHEMISTRY SS 1
CHEMISTRY SS 1- FIRST TERM 1. Introduction to Chemistry 2. Particulate Nature of Matter 3. Symbols, Formulae and Equations 4. Chemical Combination 5. Gas Laws CHEMISTRY SS 1- SECOND TERM… Read More »SCHEME OF WORK FOR CHEMISTRY SS 1
CHEMISTRY PAST QUESTIONS APP
CHEMISTRY PAST QUESTIONS, CHEMISTRY PAST QUESTIONS PDF, CHEMISTRY PAST QUESTIONS APP
CHEMISTRY POST UTME
CHEMISTRY POST UTME Practice the Chemistry Post UTME for Universities, Polytechnics and College of Education with our CBT software and pass your chemistry examination.
CHEMISTRY PAST QUESTIONS
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OXYGEN (O2) PROPERTIES AND USES
OXYGEN (O2) PROPERTIES AND USES Oxygen (O2) is an active, life-sustaining component of the atmosphere; making up 20% by volume of the air we breathe. It is colorless, odorless and… Read More »OXYGEN (O2) PROPERTIES AND USES
RUSTING OF IRON
Corrosion The eating up of metals by the action of air and moisture on their surface is called corrosion. The corrosion of iron is called rusting. While other metals are… Read More »RUSTING OF IRON
WATER AND HYDROGEN
WATER AND HYDROGEN Hydrogen is the simplest element. It is the first element in the periodic table, and it is placed in Group I of the periodic table. Hydrogen… Read More »WATER AND HYDROGEN
INDICATORS
INDICATORS Red cabbage juice solution works well instead of universal indicator solution. Making Cabbage Indicator Acid base indicators are chemicals that change colour in the presence of different pH… Read More »INDICATORS
COMPOUNDS AND FORMULA
COMPOUNDS AND FORMULA A compound is a pure substance formed by chemically combining at least two different elements. Compounds are two or more different elements combined. Their atoms have been… Read More »COMPOUNDS AND FORMULA
SEPARATION OF MIXTURES
SEPARATION OF MIXTURES Sometimes we need pure substances as opposed to impure ones. You can imagine a mixture of sand and table salt and imagine how much use you would… Read More »SEPARATION OF MIXTURES