Chapter 5.1 The reactivity series Flashcards
1
Q
What gas is given off if metals react with water or dilute acids?
A
Hydrogen gas is given off. The gas ‘pops’ with a lightened spill.
2
Q
What is the order of reactivity in elements?
A
- Potassium
- Sodium
- Lithium
- Calcium
- Magnesium
- Aluminium
- Zinc
- Iron
- Tin
- Lead
- Copper
- Silver
- Gold
3
Q
Many of these metals have been oxidised (i.e., have oxygen added) by oxygen in the air to form their oxides. Give an example.
A
Iron + Oxygen ===> Iron (III) Oxide
4Fe (s) + 302(g) ===> 2Fe203(s)
4
Q
What happens when magnesium is left in a beaker of water for several days?
A
It takes several days to collect enough gas to test with a lighted spill. The resulting ‘pop’ shows taht the gasis hydrogen.
