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Explain the physical properties of metals mentioned in the text above.
Explain the physical properties of metals mentioned in the text above.
The physical properties of metals mentioned in the text include being shiny, good conductors of heat/electricity, high density, malleable and ductile, usually solid at room temperature, and sonorous (makes bell-like sounds when struck).
What are some chemical properties of metals mentioned in the text?
What are some chemical properties of metals mentioned in the text?
Chemical properties of metals mentioned in the text include reactions with acid, oxygen, cold water, and steam. Reactive metals like sodium and potassium react in cold water to produce hydroxide salts, while less reactive metals like copper only react in steam and produce oxide salts instead of hydroxide salts.
What is an alloy and why are they used in preference to pure metals?
What is an alloy and why are they used in preference to pure metals?
An alloy is a mixture of two or more metals, or a mixture of one or more metals with a non-metal. Alloys are used in preference to pure metals because they can be designed to have properties for specific usage purposes, such as being harder and more resistant to corrosion.
How do reactive metals like sodium and potassium react in cold water?
How do reactive metals like sodium and potassium react in cold water?
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Why are alloys harder than pure metals?
Why are alloys harder than pure metals?
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