CHEMICAL COMPOUNDS WHICH CONSTITUTE LIVING ORGANISMS All matter is made up of chemical elements, each of which exists in the form of smaller units called atoms Some of the elements… Read More »CHEMICAL COMPOUNDS WHICH CONSTITUTE LIVING ORGANISMS
SYMBOL SOFELEMENT An element is a substance which consists of only one kind of matter Over 100 elements are known, these elements are usually represented by symbols instead of writing… Read More »CHEMICAL SYMBOLS AND FORMULAE
If the law of conservation of matter is to be kept, it means that there must be the same number of atoms in each half of the equation. There must… Read More »SIMPLE CHEMICAL EQUATIONS