Fundamental Ideas
Rocks and Building
Extracting Metals
Crude oil
Pot Luck
100
What Charge does a proton have?
+1
100
What is the chemical formula of calcium carbonate?
CaCO3
100
Gold, Silver and Platinum are ........... metals
native
100
What key word am I describing? These compounds only contain carbon and hydrogen atoms.
What is a hydrocarbon
100
What is the difference between complete and incomplete combustion.
Complete - lots of oxygen Incomplete - limited oxygen
200
What ion does a lithium atom form?
Li+
200
what two products are made when limestone is heated?
calcium oxide and carbon dioxide
200
What am I describing? This rock contains enough metal to make it economic to extract.
An Ore
200
How is crude oil separated?
Fractional Distillation
200
Name the 2 products of complete combustion.
carbon dioxide and water
300
Define the term: Mass Number
The total number of protons and neutrons in an atom.
300
When metal carbonates are heated they undergo which chemical reaction?
Thermal decomposition
300
Why is aluminium so expensive to extract?
It is extracted using Electrolysis
300
What key word am I describing? A saturated hydrocarbon.
An Alkane
300
What am I making? Add small amounts of crushed rock to cement , sand and water.
Concrete
400
What is the electron configuration of chlorine?
2,8,7
400
How is calcium hydroxide solution turned back into limestone?
Add CO2
400
Name a new method of extracting copper and what this method uses to extract copper from its ore.
1. PHYTOMINING - Uses plants to extract copper from the soil. OR 2. BIOLEECHING- Uses bacteria to extract copper from its ore.
400
Name 2 properties you would associate with a small hydrocarbon.
1. Low boiling point 2. Low viscosity 3. High flammability 4. High volatility
400
Sulfur dioxide (SO2) causes which environmental problem?
Acid Rain
500
Name 2 types of chemical bonding found in coumpounds.
Ionic and Covalent bonding
500
Write the balanced symbol equation for the termal decomposition of Copper Oxide.
CuCO3 -> CuO + CO2
500
How is titanium extracted?
Reduction by sodium.
500
What is the general formula for an alkane?
CnH2n+2
500
Identify 1 cleaner fuel that could be used instead of petrol/diesel in our future cars.
Biofuels (made from plants) Hydrogen Fuel Cells Bioethanol (made from ethanol)
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