SS1 Accounting – Accounting Equation and Double Entry Principle
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SS1 Chemistry – Laws of Chemical Combination
CONTENT: Law of conservation of matters Law of constant composition Law of multiple proportions. PERIOD 1: CHEMICAL LAWS OF COMBINATIONS Four laws of chemical combination describe the general features
SS1 Chemistry – Atomic Number, Mass Number, Isotopes, and Calculations
CONTENT ATOMIC NUMBER AND MASS NUMBER ISOTOPES CALCULATIONS OF RELATIVE ATOMIC MASS CONSTITUENTS OF AN ATOM Atoms are made up of sub-particles. Protons, electrons, and neutrons. Proton has