Across
- 2. A particle diagram represents atoms as these shapes
- 3. Mercury is a toxic metal that can cause ... damage
- 8. If a substance does not dissolve in water, it is called...
- 10. The type of reaction where an acid and an alkali react to form water
- 14. Limewater is an alkaline substance that can damage these and skin
- 15. Silver chloride does not dissolve in water, so it forms a white ...
- 16. Type of substance that is used to treat indigestion
- 17. The test for oxygen works because oxygen allows hot wood to start this
- 18. The stomach produces a strong ... to help digest food
- 22. The instrument used to measure pH accurately
- 25. Magnesium oxide is this because it contains different atoms held together
- 26. the liquid that dissolves a solute
- 29. A substance that changes colour depending on pH is called an ...
- 30. The test for hydrogen works because hydrogen is...
- 32. type of paper that is used to test acidity of a solution
- 33. pH of a neutral solutions
- 34. You test for this gas using a glowing splint – it relights
- 35. You test for this gas using a lighted splint – it makes a ‘pop’ sound
Down
- 1. A reaction in which a precipitate forms is called a ... reaction
- 4. Antacid tablets contain ... to neutralise stomach acid
- 5. the colour of the flame when magnesium burns in air
- 6. When magnesium burns in air, the mixture gets very...
- 7. The new substances formed in a chemical reaction
- 9. type of substance forms when an acid and an alkali react together, besides water
- 11. The type of diagram that shows atoms as circles joined together is called ... diagram
- 12. The substances that react together in a chemical reaction
- 13. You test for this gas using limewater – it turns milky
- 19. Magnesium + oxygen → magnesium ...
- 20. A compound can only be separated using chemical ...
- 21. If you mix exactly the right amount of acid and alkali, a ... solution is formed
- 23. A ... change can show that a chemical reaction has happened
- 24. Copper sulfate + sodium silicate → copper silicate + sodium ...
- 26. Characteristics of substance that dissolved in water is called ...
- 27. Universal Indicator gives a ... of colours from red to purple
- 28. If you mix an insoluble substance with water, the mixture becomes...
- 31. The colour of universal indicator at neutral pH