Across
- 7. / A soluble base with a pH greater than 7
- 8. shell / the shell furthest away from the nucleus
- 12. / gain of electrons
- 13. / unit for distance
- 14. / speeds up a reaction not used up
- 15. / two or more elements
- 18. / OH
- 20. energy / energy to start a reaction
- 22. / name of all the elements in group 7 of the periodic table
- 23. oil / source of ethene
- 24. / pink to colourless in acid
- 26. syringe / used to collect or measure volume of gas
- 30. / a mixture made by adding a soluble substance to water
- 31. / non-metal and non-metal
- 33. / quantity measured by a ruler
- 34. / saturated
- 35. / name of apparatus used to add a liquid drop by drop
Down
- 1. / H2
- 2. / made up of more than one atom chemically bonded
- 3. / unit for mass
- 4. formula / shows all bonds and atoms
- 5. reaction / reaction when two or more reactants form only one product
- 6. / a red-brown liquid
- 8. / loss of electrons
- 9. and cross / name of diagram used to show the molecules in a particle
- 10. indicator / measures pH
- 11. / burning with an excess of oxygen
- 16. / smallest unit for distance
- 17. / compound made up of hydrogen and carbon only
- 18. / He
- 19. / C2H4O
- 21. / smaller unit for distance
- 25. / quantity for a gas syringe
- 27. / unsaturated
- 28. / metal and a non-metal stick together
- 29. / a substance made up of only one type of atom
- 32. monoxide / created from incomplete combustion