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Answer Purple gold has this approx. composition: 79 % gold and 21 % aluminium (forming the intermetallic compound AuAl2). It is used in jewelry but is not a resistant material.
You think probable to gold alloys; gold alloys have better mechanical properties than pure gold.
Purple gold has this approx. composition: 79 % gold and 21 % aluminium (forming the intermetallic compound AuAl2). It is used in jewelry but is not a resistant material.
Gold coins are not legal tender (at least in the USA). You could first sell them or trade them which could serve the same purpose.
No, gold is an element, not a mixture. It is a pure substance composed of only gold atoms.
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No, a bar of pure gold is not a mixture. It is a pure substance because it is composed of only one type of atom, gold.
A mixture of gold and silver is called an alloy. Common examples of gold and silver alloys include white gold and rose gold.
Gold is metal that is a homogenous mixture. It is not a heterogeneous mixture, because a heterogeneous mixture can be physically separated.
no
Gold is a pure element, not a mixture of any kind.White gold (alloy with nickel, manganese, or palladium) is a homogeneous mixture because you can't see the separate substances that are in it. Therefore it is a homogeneous mixture.
No, pure gold is not a mixture. It is considered a pure substance because it is composed of only one type of atom, which is gold.