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All mixtures can be separated easily, chemical reactions cannot.
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∙ 12y ago
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Is nickel a non renewable resource and why?
Nickel is a non renewable resource because you can't make more of it. Once a mine runs out of nickel it won't make any more.
Name 3 magnetic metals?
All ferrous metals like iron, steel and to some extent stainless steel. Nickel and cobalt are magnetic too. Apart from these there are rare magnetic earths or rocks like 'neodymium'. Magnetite, which was first used by man as a magnetic material (for compass-like purposes) is an oxide of iron. In New Zealand all our "copper" coins are magnetic. This would apply to the coins of any country where they contain high levels of nickel. I once lived on a property in Queensland where lumps of 'gravel' would often cling to my spade ... the soil was heavily laden with magnetite!
How does copper compare to magnesium when you burn the copper?
Magnesium burns very easily indeed and is self sustaining once it is burning. Copper is extremely difficult to burn and requires very high temperatures.
Are metal ores a finite?
It is definitely a finite material because once you have used it, it will be mixed with other materials such a plastic.
How do fossild indicate that the continents have moved with time?
If specific fossils are found in two separated continents, it means that both continents were once joined.
Metal used in a nickel coin?
erm....nickel Not quite ... US nickels are actually made from an alloy of only 25% nickel, the rest is copper. Canadian nickels were once pure nickel, but in recent years they've been made of steel because the price of nickel rose to the point where the amount needed would cost more than five cents. Copper. The mix is 75% copper and 25% nickel.
How can salt and water be separated once it is mixed together?
Heat the mixture, which will make the water evaporate, leaving behind the salt.
Can a mixture of powdered juice and water be separated by filtration?
No, a mixture of powdered juice and water can not be separated by filtration. Once the powdered juice and water are mixed together they become one and can be filtered out.
What year did the US nickel stop being made of silver?
Many people believe that US nickels were once made from silver, like dimes and quarters were, however since its introduction in 1866 nearly all US nickels have been made of a copper-nickel alloy; hence the name "nickel". The nickel did briefly contain a small amount of silver during World War II because nickel was considered a "strategic metal". During this time it was composed of an alloy of copper, silver, and manganese.
Which is more reactive zinc or nickel?
Iron is more reactive than copper because it is higher up on the activity series. There is more reasons to back this up such as outer electrons more tightly bound than others. Those who have less tightly bound electrons are more reactive. Hope this helps you.
How is iridium extracted?
Iridium is extracted after copper and nickel processing, from a mixture known as anode mud. Once this mixture is dissolved, the iridium is brought to the surface via extraction with organic amines.
How can you separate nickel from sand?
soak it in water.... then use a paper filter once the particles are all separated and you got paper either staying at the top or it's at the bottom (depending on the type of filter used
How much silver is in a Canadian 1978 5 cent coin?
None. Canada has never made a silver nickel. In fact, until recently their nickels were really made of pure nickel, unlike those in the U.S. that are mostly copper. Canada DID, however, once make a much smaller 5-cent coin in silver, but it was last minted in 1921 and was never called a nickel because it didn't have any nickel in it.
How is commingled recycled material separated?
Fully commingled, or single-sort, recycling is the system in which papers fibers, metals, and plastics are mixed in a collection trunk rather than being separated into separate commodities. This method is designed so that commingled materials can be handled all at once. Later, the materials will be separated at a materials recovery facility.
What metal are British One Pound coins made out of?
1p & 2p coins are made of copper-plated steel. 5p 20p & 50p coins are made of copper-nickel. £1 coins are made of brass. £2 are brass on the outer ring and nickel on the inner portion
Is copper once alive?
No
Is copper sulfate a metal?
Copper sulfate is not a metal There are two compounds called Copper Sulfate, which are salts of the metal Copper. CuSO4 is Copper (II) Sulfate, once known as Cupric Sulfate. Cu2SO4 is Copper (I) Sulfate, once known as Cuprous Sulfate.
