Across
- 2. name for a reaction between an acid and an alkali
- 5. what number on the pH scale shows a strong alkali
- 6. colour of universal indicator in a strong alkali
- 7. name of acid with formula H2SO4
- 8. steel is used in buildings because it is ____
- 11. what gas is made when a metal reacts with acid
- 12. what number on the pH scale shows a strong acid
- 13. copper is used in wires because it is a good _____ of electricity
- 17. used to separate liquids with different boiling points
- 18. name of acid with formula HCl
Down
- 1. used to separate different colours in ink
- 3. what number on the pH scale shows neutral
- 4. colour of universal indicator in neutral
- 5. we can use ___ paper to separate solids and liquids
- 6. if we put a lit splint in hydrogen it makes a squeaky ___ sound
- 9. name of acid with the formula H2NO3
- 10. using electricity to separate ions
- 14. aluminium is used in planes because it has low _____
- 15. colour of universal indicator in a strong acid
- 16. recylcing often uses less ___ compared to getting new materials