C5 - Chemical Reactions and Energy Charges Flashcards
1
Q
Reactivity Series (Metals)
A
Potassium Sodium Lithium Calcium Magnesium "Carbon" Zinc Iron "Hydrogen" Copper
2
Q
How Reactivity is determined (Metals)
A
- How easily they loose electrons
- Higher up the series, easier it is too loose electrons
3
Q
Product when forming Metals with Acid
A
Salt + Hydrogen Gas
4
Q
Product when forming Metals with Water
A
Metal Hydroxide + Hydrogen
5
Q
Redox Reaction
A
When electrons are transferred
6
Q
Oxidation
A
Loss of electrons
7
Q
Reduction
A
Gain of electrons
8
Q
Displacement Reaction
A
- When a more reactive metal displaces a less reactive metal from it’s substance
- Only metal Ions gain electrons and are reduced
- Metal atoms always loose electrons and are oxidised
9
Q
How Metal separate from Oxides
A
- Using reduction with any metal more reactive in the reactivity series
10
Q
Product when forming Acids and Metal Oxide
A
Salt + Water
11
Q
Product when forming Acids and Metal Hydroxide
A
Salt + Water
12
Q
Product when forming Acid with Metal Carbonate
A
Salt + Water + Carbon Dioxide
13
Q
Ph
A
- Measures how Acidic/Alkaline a substance is
- 7 is neutral e.g. pure water
14
Q
Indicators
A
- Shows colours based of Ph of a substance, or show presence of Sugar, Protein, Lipids
15
Q
Testing for Hydrogen
A
- Burning match inserted into test tube with Hydrogen in it, Hydrogen burns rapidly causing a pop sound
16
Q
Testing for Oxygen
A
- Burning match inserted into test tube with Oxygen in it, Oxygen will relight the match
17
Q
Testing for Carbon Dioxide
A
- Use Limewater (Solution of Calcium Hydroxide) in a test tube and we insert Carbon Dioxide into it using a pipette, bubbles would occur and solution will turn grey when adding more Carbon Dioxide
18
Q
Testing for Chlorine
A
- Put damp Litmus Paper into test tube of Chlorine, paper would turn white
