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Zinc Oxide is originally a white powder. When heated up, it turns yellow but does not decompose and when it is removed from the heat it gradually goes back to its original white colour. If you heat it strongly enough to very high tempereatures it will sublime without apparent decomposition.
The reason for the yellow colour is that a minute amount of oxyegen evaporates from the lattice (70 ppm) the small number of zinc atoms produce lattice defects that give rise to the colour. Doping zinc oxide with minute traces of zinc will give a range of colours, yellow, green brown and red.
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∙ 11y ago
Anonymous
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∙ 13y agoIt produces cardon dioxide which tells us that this is a thermal decomposition reaction!!
There is a white solid which remains in the test tube but I don't know what it is!!
If you know then plz tell me!!
THIS WHITE SOLID IS ZINC OXIDE
Wiki User
∙ 13y agoWhen Zinc Oxide is heated, it turns a pale, lemony color and when take off the heat, turns back to white. Nothing has happened to the zinc, it has not thermally decomposed.
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∙ 7y agoThe formula of zinc oxide is the representation of the structure of the chemical compound. The formula will remain the same, irrespective of the temperature.
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∙ 16y agoIt goes bendy
Wiki User
∙ 15y agoIt decomposes
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What mineral is used to create makupe and powder?
minerals like zinc oxide, iron oxide, titanium dioxide, mica and ultramarine are all ground up into finer particles to crate makeups and powder.
What is zinc bars?
A place you go to drink zinc? No, it is an ingot of the metal zinc.
What transition metal has 30 electrons?
Iron (Fe), 26 electrons in neutral atom, 23 in Fe3+. Rust, Fe203 has Fe3+ ions.
Why do metals burn with different coloured flames?
Each metal has a different emmission spectrum because each metal has a different configuration of electrons. Since electrons can only emit specific amounts of energy and E=hv, where E=energy h=Planck's constant and v=vibrations per second, and E stays the same and h stays the same, the vibrations differ. Different vibrations mean different spots on the electromagnetic spectrum, and so there are different colors.
What does galvanized mean?
Zinc plating a metal which has a less negative reduction potential will protect the metal as the zinc is oxidised in preference. This is called galvanising
What happens when lead and zinc oxide are heated?
it explodes
What decomposes when heated to give zinc oxide?
nothing happens
What is the yellow powder created when heating zinc oxide?
what happens to calcium oxide and zinc oxide when heated?
What metal when It decomposes it heated it give zinc oxide?
Zinc oxide can be obtained by heating zinc nitrate.
What is ZnOS?
This is zinc oxide doped with sulfur.
What is the structural formula for zinc oxide?
Since zinc oxide is an ionic lattice when solid, it does not have a structural formula. Its empirical formula is ZnO.
What is the chemical name for white powder when zinc in heated?
zinc(II) oxide
Is yellow when heated and white when cold?
Zinc oxide
What happens when you mix zinc and zinc?
u get zinc oxide
What compound decomposes when it is heated to zinc oxide?
calcium carbona
What happens to magnesium carbonate copper carbonate zinc carbonate and calcium carbonate when they are heated?
They form magnesium oxide, copper oxide etc. and will form carbon dioxide as a byproduct.
What will happen if aluminium is heated with zinc oxide?
no becauswe the aluminum is more reactive than the zinc.
