Across
- 2. The ... scale measures how strong an acid or base solution is.
- 6. The end result of the reactants in an experiment
- 8. A substance not completely dissociated in a solution
- 10. C2H5OH, a colourless volatile flammable liquid which is produced by the natural fermentation of sugars; alcohol
- 13. pH indicator made of a solution of several compounds
- 15. a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
- 17. The process of transforming ore into a metal is reversed as the metal is exposed to oxygen and water
- 18. the product of acids and bases are water and... The product of acid and metals are hyrdogen and... the product of acid and carbonate is carbon dioxide, water and...
- 19. A material that is burnt or used as a source of heat or power.
- 20. value-free
- 21. A chemical reaction that gives out heat
- 22. An electron is removed from the nucleus during a chemical reaction.
- 26. an indicator in acid–base titrations, C₂₀H₁₄O₄
- 27. a natural substance that is not replenished with the speed at which it is consumed.
- 28. A substance that changes color in the presence of a base or acid
- 29. Often have a sour taste, ph lower than 7, give away hydrogen ions, conduct electricity when mixed with water, can neutralize bases, react with many metals
Down
- 1. A natural indicator used by the British
- 3. A compound of hydrogen and carbon. When burnt in unlimited are it produces carbon dioxide and water, when burnt in limited air is produces carbon monoxide.
- 4. renewable energy derived from living materials.
- 5. Often have a soapy feeling, ph higher than 7, naturalize acids, when dissolved in water they are called alkanes, have a bitter taste
- 7. one that can be used repeatedly and does not run out because it is naturally replaced.
- 9. the process of the reaction between a base and acid
- 11. completely ionized in a solution
- 12. A chemical reaction that absorbs heat
- 14. Iron metal oxidizes to from ion oxide known as...
- 16. CO2, a product of acid and carbonate
- 17. Many of the molecules are dissolved in the set amount of solution
- 23. A natural indicator that is a root vegetable.
- 24. decreased concentration of a solute in a solution
- 25. The material used in an experiment that creates the product
