"Y9 Chemical Formulae Crossword": HTML5 Crossword

Across

5. A strong force of attraction holding atoms together in a molecule or crystal (4)
6. The common name for Nitrogen Trihydride (7)
8. An electrically neutral group of two or more atoms held together by chemical bonds (8)
9. When bonds are broken and formed (8)
10. Written or printed below the line (9)
13. The things on the left of a chemical equation (9)
16. Sometimes put around a group of atoms so we can multiply them with a subscript (8)
17. You have to do this to chemical equations to make sure they have the same number of atoms in (7)

Down

1. Separates reactants and products (Never use = ) (5)
2. A symbolic representation of a chemical reaction (8)
3. An abbreviation used in chemistry for chemical elements (6)
4. A set of chemical symbols showing the elements present in a compound (8)
7. A number that multiples a chemical formula (11)
11. Boiling is an example of this change (8)
12. These are produced in a chemical reaction (8)
14. A change that is usually quite hard to reverse (8)
15. This subscript symbol tells you whether a substance is a solid liquid or gas or in aqueous solution (5)