TOPIC 5: ATOMIC STRUCTURE | CHEMISTRY FORM 2
The Atom
We learned early that matter is made up of small, indivisible particles.
Everything around us is made of extremely small particles. These
particles are either...
TOPIC 4: FUEL AND ENERGY | CHEMISTRY FORM 2
A fuel is a substance that can be combusted or burnt to release energy as a byproduct. The energy can be in the form...
TOPIC 3: WATER | CHEMISTRY FORM 2
Occurrence and Nature of Water
The Occurrence and Nature of Water
Describe the occurrence and nature of water
Water is the most abundant liquid in nature. It...
TOPIC 2: HYDROGEN | CHEMISTRY FORM 1
Hydrogen is the lightest of all the elements. There is very little hydrogen in the earth’s atmosphere. Hydrogen is so light that its molecules...
TOPIC 1: OXYGEN | CHEMISTRY FORM 2
Oxygen exists in air to an extent of 21% by volume (or 23% by weight). It is the most abundant element on earth, accounting...
