"Y9 Chemical Formulae Crossword": HTML5 Crossword

Across

4. Separates reactants and products (Never use = ) (5)
5. Sometimes put around a group of atoms so we can multiply them with a subscript (8)
6. An abbreviation used in chemistry for chemical elements (6)
8. Boiling is an example of this change (8)
11. A change that is usually quite hard to reverse (8)
12. Written or printed below the line (9)
13. Many Formulas (8)
16. You have to do this to chemical equations to make sure they have the same number of atoms in (7)
17. These are produced in a chemical reaction (8)

Down

1. This subscript symbol tells you whether a substance is a solid liquid or gas or in aqueous solution (5)
2. The common name for Nitrogen Trihydride (7)
3. A set of chemical symbols showing the elements present in a compound (8)
7. A number that multiples a chemical formula (11)
9. An electrically neutral group of two or more atoms held together by chemical bonds (8)
10. The things on the left of a chemical equation (9)
14. When bonds are broken and formed (8)
15. A symbolic representation of a chemical reaction (8)
16. A strong force of attraction holding atoms together in a molecule or crystal (4)