Across
- 3. When an equation has equal number of atoms in both sides
- 5. deterioration of metals by air moisture chemicals etc
- 10. releasing heat to the surroundings.
- 11. A solid formed from a chemical reaction that settles out a solution
- 13. a single compound breaking down into simpler substances.
- 15. a substance formed by the reactants
- 16. reaction in which the reactant will break down by the absorption of the photons
- 18. where two or more elements or compounds combine to form a single product.
Down
- 1. absorbing heat from the surroundings.
- 2. prevents rusting by zinc
- 4. Exchange of two ionic compounds
- 6. Chemical substances that react together to form substance
- 7. A symbol used in chemical equations to show if a substance is a solid, a liquid, a gas, or an aqueous solution
- 8. Gain of an electron or a decrease in the oxidation state of an atom
- 9. One element replaced by another element
- 12. gaining oxygen during a reaction by an atom molecule or ion
- 14. a reaction in which oxidation and reduction take place simultaneously
- 17. Oxidation commonly present in food