SLE133 Chemistry In Our World

Summary:

The SLE133 Chemistry In Our World unit notes provide a comprehensive overview of the key concepts and principles in chemistry. The notes cover various topics, starting with an introduction to the relevance of chemistry in our daily lives. The structure of matter is explored through the study of atoms and the periodic table, which helps to understand the properties and behaviour of elements.

The notes further delve into different types of chemical bonding, focusing on ionic compounds and covalent bonding. The formation and properties of these compounds are discussed, highlighting the role of electrons in bonding.

Chemical reactions and equations are explored, emphasizing the importance of balancing equations and understanding the stoichiometry involved in reactions. The concept of energy in chemical systems is introduced, including topics such as exothermic and endothermic reactions, heat transfer, and energy conservation.

Equilibrium is examined as a dynamic balance between forward and reverse reactions. The factors affecting equilibrium and the principles of Le Chatelier’s principle are covered.

The notes also discuss the states of matter, including solids, liquids, and gases, and their properties. The behaviour of substances in different states and phase changes are explained.

Mixtures and solutions are explored, covering topics such as solubility, concentration, and colligative properties. The notes also introduce the concepts of acids and bases, including their properties, pH scale, and acid-base reactions.

These unit notes serve as a valuable resource for students studying chemistry, providing a comprehensive overview of the fundamental principles and topics covered in the course.

Excerpt:

SLE133 Chemistry In Our World

Chemistry in Our World Introduction

• Chemistry: the study of the nature, properties and transformations of matter
• Matter: anything that has mass and occupies space
• Scientific Method: the process of observation, hypothesis, and experimentation used to expand a
  body of knowledge
• Property: a characteristic useful for identifying a substance or object (i.e. size, colour, temperature,
  chemical composition and chemical reactivity)
• Physical Change: a change that does not affect the chemical makeup of a substance or object
• Chemical Change: a change in the chemical makeup of a substance