They are used to make plane bodies. Some are used for electrical wires eg copper because they are good conductors of electricity. Used in building materials. used to make jewelry eg gold and silver<span />
Copper and aluminium wire are used to carry electric current.
Copper, aluminium and iron are used to make domestic utensils and factory equipment.
Thin foils of aluminium are used for wrapping cigarettes, medicines, confectionery, etc.
Aluminium is used for making angles, doors, pipes, etc. which are used in the construction of houses.
Metals such as sodium, titanium, zirconium, etc. are used in generation of nuclear energy and in space science projects.
Mercury is used in thermometers.
Magnesium metal is used as a strong reducing agent to prepare other metals.
Gold and silver metals are used to make jewellery.
Thin foils of silver and gold are used to decorate sweets.
Uranium metal is used to generate nuclear energy.
Titanium metal is very hard, resistant to corrosion, light, has high melting point and is good conductor of heat and electricity. Because of its unique and useful properties titanium is sometimes called ‘the wonder metal’.
Given: <span> 2.1 moles of chlorine gas (Cl2) at standard temperature and pressure (STP) Required: volume of CL2 Solution: Use the ideal gas law PV = nRT V = nRT/P V = (2.1 moles Cl2) (0.08203 L - atm / mol - K) (273K) / (1 atm) V = 47 L</span>
I'm not sure about part 1, you may need to google it, but part two is 11 protons, 11 electrons and 12 neutrons. You can find protons and electrons by just looking at the atomic number, and you can find neutrons by subtracting the atomic number from the atomic mass.
1 is D - double-replacements do not make solid metals 2 is A - to have complete combustion the original compound must ONLY have C, H and O 3 is B - the elemental Mg replaces the H in the HCl
