Across
- 3. a substance formed by the physical change of 2 or more element in random ratios
- 5. the result of a chemical reaction in which the reactants an products are represented by symbols
- 7. the elements or compounds that take part in a chemical reaction
- 8. the number of atoms of each element in a compound,symbols and valencies
Down
- 1. the rearrangement of the elements form new compounds
- 2. the number of atoms present in a molecule of an atom
- 4. an abbreviation of a chemical element
- 5. a substance formed by the chemical change of 2 or more elements in fixed proportions
- 6. a measure of the combining capacity of an element or a group