Skip to content
Back to quiz
6. What colour flame does calcium create?
- Brick red
- Green
- Yellow
- Crimson
7. When you increase temperature...
- Equilibrium shifts to decrease temperature (favour endo)
- Equilibrium shifts to increase temperature (favour exo)
8. The point at which the acid/alkali reaction is complete is called the...
9. What colour compound does Iron (III) Sulfate produce?
10. When breaking bonds, energy is...
- absorbed (endorthermic)
- released (exothermic)
11. In 1869, Mendeleev produced the modern periodic table, what did it allow for?
- Undiscovered electrons
- Undiscovered elements
- New groups
12. When metals react with water...
- hydrogen and a metal hydroxide are produced
- oxygen and a metal hydroxide are produced
- water and metal a hydroxide are produced
13. As size increases down the group, it is...
- not reactive
- less reactive, hard to gain electrons
- more reactive, easy to gain electrons
14. What is the flame test used to identitfy?
- Group 1 and 2 metals
- Group 4 and 5 non-metals
- Group 8 noble gases
15. What does hard water produce when heated?
16. What colour flame does barium create?
- Brick red
- Lilac
- Green
- Yellow
17. Who created the first periodic table in 1808?
- John Dalton
- John Newlands
- Dmitri Mendeleev
18. What did John Lewlands Law say?
- That the atomic weight changed every 8 elements
- That every 8th element had similar properties
- That every 8th element was the same
19. When you decrease pressure...
- Equilibrium shifts to increase pressure
- Equilibrium shifts to decrease pressure
20. Halogens are the most reactive non-metals?