C3 - Chemicals in Our Lives
- Created by: eloisa_braith
- Created on: 26-03-15 22:30
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- C3 - Chemicals in Our Lives
- Continental Drift
- Magma
- Circles to & from centre of magnetic field in Earth's core
- Tectonic plates slowly move apart
- Magma solidifies
- Forming rocks
- Forming volcanoes
- Magma solidifies
- Tectonic plates slowly move apart
- Contains an ion
- Circles to & from centre of magnetic field in Earth's core
- Proved by:
- Continent shapes
- Fossils
- Zebra Stripes
- Magma
- Diet & Diabetes
- Type 1
- Develops at young age
- Insulin producing cells are destroyed in pancreas
- Type 2
- Develops at elderly age
- More insulin needed than usual to maintain blood glucose levels
- Cells in body don't respond to hormone (insulin) normally
- Balanced Diet
- Contains:
- Fruit & veg
- Starchy foods
- Low in fatty foods
- Contains:
- Obesety
- Caused by:
- Eating too much food
- Lack of exercise
- Caused by:
- Type 1
- Salt Extracting
- Salt mining
- Rock salt drilled, blasted & refined
- Machinery brings salt to surface
- Rock salt drilled, blasted & refined
- Solution mining
- Water injected into ground
- Dissolves salt in water
- Making brine
- Pressure forces brine to surface
- Brine heated to evaporate water
- Dissolves salt in water
- Water injected into ground
- From the Sea
- Salt water heated to evaporate water
- Purest salt (nearly 100%)
- Salt water heated to evaporate water
- Used for:
- Food presevation
- Food flavouring
- Making roads less icy
- Making saleen in drip bags
- Salt mining
- Salt in the Diet
- Health issues
- High blood pressure
- Strokes
- Heath attacks
- Stomach cancer
- Osteoporosis
- High blood pressure
- GDA (adult) = 8.4g
- Health issues
- Electrolysis of Salt
- Separation of a compound using electricity
- Compound must be soluble
- Hydrogen
- Chlorine
- Sodium hydroxide
- Environmental impact
- Sometimes uses fossil fuels
- Releases pollutants ( CO2 ) into atmpsphere
- Asbestos used in industry
- Causes lung cancer
- Mercury sometimes used
- Toxic
- Sometimes uses fossil fuels
- Separation of a compound using electricity
- Chlorination
- Water treatment
- Kills microorganisma
- Removes bad tastes and smells
- Made from Hydrogen Chloride
- Oxidise
- 4HCl + O2 --> 2Cl2 + 2H2O
- Oxidise
- Risks
- Chlorinated hydrocarbons are carcinogenic (cancer causing)
- Chlorine gas irritates respiratory system
- Liquid chlorine causes severe chemical burns on eyes or skin
- Water treatment
- Alkalis
- Compound forming hydroxide ions (OH-) when dissolved in water
- Neutralisation reaction
- Acid + Alkali = Salt + Water (neutral)
- Acid + Metal Carbonate = Metal Salt + Carbon dioxide + Water
- Acid + Metal Hydroxide = Metal Salt + Water
- Life Cycle Assessment
- Deciding if product is suitable to be made -viable alternatives
- Cradle
- Ude
- Grave
- Energy needed to dispose
- Space needed to dispose
- Energy needed to dispose
- Energy needed for use
- Energy needed to maintain
- Water used to maintain
- Energy needed to maintain
- Grave
- Raw materials
- Processing of materials
- Water used in manufacture
- Processing of materials
- Ude
- Continental Drift
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