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Q: Why an excess of copper oxide is added to s?
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What happens when you burn copper?

When copper gets burned, its own identity vanishes and it changes into a black coloured powdery substance. This substance is copper oxide. The reaction is as follows:- 2Cu(s) + O2(g) ------> 2CuO(s)


Is copper oxide a basic or amphoteric oxide?

amphoteric, it reacts with an acid or a base to form a salt and water (a neutralisation reaction) ZnO(s) + 2HCL (aq) = ZnCl2(aq) + H2O(l) ZnO (s) + 2OH- (aq) = ZnO22-(s) + H2O(l)


If a piece of copper is heated in the air what will happen to the mass of the piece of metal?

The copper wire glows red. Once it cools...the copper reacts with the air to produce copper(II) oxide. This is shown by the black tarnish on the copper wire.


How do you write an equation that shows the formation of a copperII ion from a neutral copper atom?

Copper(II) oxide is CuO. When binary compounds (compounds composed of only two elements) decompose, they produce their elements. So the unbalanced equation would be: CuO(s) --> Cu(s) + O2(g) Now you have 1 Cu and 1 O on the reactant side and 1 Cu and 2 O on the product side. To balance, first put a coefficient of 2 in front of CuO so each side has 2 O. 2CuO(s) --> Cu(s) + O2(g) This leaves 2 Cu on the reactant side, but only 1 Cu on the product side so now put a coefficient of 2 in front of Cu so each side has 2 Cu. 2CuO(s) --> 2Cu(s) + O2(g) The equation is balanced!


How do you write solid copper II oxide reacts with aqueous sulfuric acid to form aqueous copper II sulfate?

The equation for this reaction is CuO (s) + H2SO4 (aq) -> CuSO4 (aq) + H2O (l).

Related questions

What does copper oxide plus zinc metal form?

Zn(s) + CuO(s) → ZnO(s) + Cu(s) Copper metal and Zinc Oxide is formed.


What is the balanced equation for copper an oxygen?

There are two different copper oxide formula's:2Cu + O2 -> 2CuO (black Copper(II) oxide)or4Cu + O2 -> 2Cu2O (red Copper(I) oxide)Copper(II) = Cu2+Oxide = O2-CuO or copper(II) oxide


What is left behind in the filter when you mix copper oxide with sulphuric acid?

Copper(s)


What is balanced euqation for copper oxide with diluted hydrochloric acid?

CuO(s) + 2HCl(aq) --> CuCl2(aq) + H2O(l) Copper oxide + Hydrochloric Acid --> Copper Chloride + Water


What is the formula of copper 2 oxide?

Copper(2)oxide is written as Cu2O.Not that the last alphabet is O for oxygen,not 0 for zero Actually Copper (II) Oxide is written as CuO, because Copper 2 has the charge 2+ and Oxygen has the charge 2-, so they balance each other out evenly. THere is no need for 2 (Cu2)'s.


When copper oxide is heated in carbon what is produced?

Copper doesn't react with carbon dioxide at room temperature.


Why does copper blue hydroxide change to black copper oxide?

Cu(OH)2 can be regarded as unstable ['copper oxide'-'hydrate'], and as such it easily loses a water (H2O) molecule, eg. when heated:Cu(OH)2(s) --> [CuO.H2O] --> CuO(s) + H2OOnly hydrated copper ions are blue colored.(Compare white CuSO4(s) and blue CuSO4.5H2O(s) )


Symbol equation when copper carbonate is heated?

Here are the equations for the thermal decomposition of copper carbonate (notice that a metal oxide is formed, just as it was with calcium carbonate): Copper carbonate → copper oxide + carbon dioxide CuCO3 → CuO + CO2


Solid cesium oxide is added to water?

When solid cesium oxide is added to water, you get this equation:Cs2O (s) + H2O (l) --> 2 CsOH (aq)


What is the copper oxide word equation?

2Cu (s) + O2 (g) -----------------> 2CuO (s)


What is the word equation for the reaction between copper oxide and sulfric acid?

CuO + H2SO4 ----> CuSO4 + H2O The products are Copper(II) sulphate and water


What happens when copper is heate?

The brown colored element, copper on heating in air forms copper oxide which in black in color. 2Cu(s) +O2(g) gives rise to 2CuO(s)