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Why does copper carbonate decompose to make copper 2 oxide not copper 1 oxide?
Wiki User
∙ 16y ago
Because it is easier. The molecular formula of copper carbonate is CuCO3. When it decomposes it loses a CO2 molecule. If it became Copper 1 oxide(Cu2O then it would have to combine with another molecule(releasing O). Instead it becames copper2 oxide(CuO) because that is an easier transition.
Wiki User
∙ 16y ago
Copper carbonate decomposes to form copper(II) oxide (CuO) instead of copper(I) oxide (Cu2O) due to differences in the oxidation states of copper. Copper in copper carbonate is in the +2 oxidation state, and during decomposition, it retains this oxidation state in copper(II) oxide. On the other hand, copper(I) oxide would require the copper to be in the +1 oxidation state, which is less stable for copper.
Wiki User
∙ 13y agoIn order to obtain solid Copper (II) oxide, you must heat solid Copper (II) carbonate, and you should observe a physical change, the powder will go from blue-green to black.
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How do you make copper oxide from copper carbonate?
Carbonate Decomposition Aim: To investigate the decomposition of a carbonate. Equipment: · Copper Carbonate (CuCO3) · Limewater · Bunsen Burner · Matches · Test tubes · Clamp and stand · Hydrochloric Acid · Electronic Scales Method: 1. Weighed Copper Carbonate by taring empty test tube. 2. Placed some Copper Carbonate in a test tube fitted with gas delivery tube and stopper. 3. Clamped the test tube to the stand at a slight angle. 4. Half filled another test tube with limewater and placed the other end of gas delivery tube into it. 5. Using a small blue flame gently heated the carbonate. Observed what happened. 6. Removed gas tube from limewater before turning off the Bunsen burner. 7. Allowed to cool 8. Weighed the remaining Copper Carbonate. 9. Added approximately 5ml of Hydrochloric Acid to the solid residue (Copper Oxide) from the decomposition reaction. 10. Transferred a small amount of original Copper Carbonate to new test tube and added same amount of Hydrochloric Acid to that. Recorded observations. Results: Observations from Decomposition: The limewater turned milky. Observations from HCl & Copper Oxide: Small bubbles. Hardly a reaction. Observations from HCl & Copper Carbonate: Bubbles & fizzing. Small amount of heat generated. Turned milky green in colour. Reacted immeadiately. Conclusion: The limewater proved that Carbon Dioxide was produced as a result of thedecomposition reaction. The Copper Oxide test showed that theoretically there should be no reaction with HCl. Copper Carbonate, however, theoretically, should react. Evaluation: Overall, the experiment was a success except for the fact that the HCl shouldn'thave reacted with the Copper Oxide but did. This is probably due to the fact there was some Copper Carbonate still stuck to the side of the test tube and the HCl reacted with that.
What acid is used to make copper sulphate?
Sulfuric acid is commonly used to make copper sulfate by reacting it with copper oxide or copper carbonate. The reaction forms copper sulfate and water, with sulfuric acid providing the necessary protons for the reaction.
What does magnesium and copper oxide make?
When magnesium is heated with copper oxide, it forms magnesium oxide and copper. The reaction can be represented as: Mg + CuO → MgO + Cu
Which compounds make up copper carbonate?
Copper carbonate is composed of copper, carbon, and oxygen atoms. Its chemical formula is CuCO3.
What does sulfuric acid plus copper carbonate make?
Sulfuric acid and copper carbonate react to produce copper sulfate, carbon dioxide gas, and water.
How to prepare dry black copper II oxide from copper carbonate hydroxide?
To prepare dry black copper (II) oxide from copper carbonate hydroxide, you can first heat the copper carbonate hydroxide to decompose it into copper (II) oxide and carbon dioxide. The resulting copper (II) oxide can then be further heated in a controlled environment to remove any remaining moisture and impurities, leaving you with dry black copper (II) oxide. Make sure to conduct this process in a well-ventilated area as it may release harmful gases.
Does calcium carbonate decompose to make calcium oxide and water?
Calcium oxide, or quicklime, can be decomposed chemically into its components, calcium and oxygen. Calcium is an element and cannot be decomposed chemically.
How do you make copper oxide from copper carbonate?
Carbonate Decomposition Aim: To investigate the decomposition of a carbonate. Equipment: · Copper Carbonate (CuCO3) · Limewater · Bunsen Burner · Matches · Test tubes · Clamp and stand · Hydrochloric Acid · Electronic Scales Method: 1. Weighed Copper Carbonate by taring empty test tube. 2. Placed some Copper Carbonate in a test tube fitted with gas delivery tube and stopper. 3. Clamped the test tube to the stand at a slight angle. 4. Half filled another test tube with limewater and placed the other end of gas delivery tube into it. 5. Using a small blue flame gently heated the carbonate. Observed what happened. 6. Removed gas tube from limewater before turning off the Bunsen burner. 7. Allowed to cool 8. Weighed the remaining Copper Carbonate. 9. Added approximately 5ml of Hydrochloric Acid to the solid residue (Copper Oxide) from the decomposition reaction. 10. Transferred a small amount of original Copper Carbonate to new test tube and added same amount of Hydrochloric Acid to that. Recorded observations. Results: Observations from Decomposition: The limewater turned milky. Observations from HCl & Copper Oxide: Small bubbles. Hardly a reaction. Observations from HCl & Copper Carbonate: Bubbles & fizzing. Small amount of heat generated. Turned milky green in colour. Reacted immeadiately. Conclusion: The limewater proved that Carbon Dioxide was produced as a result of thedecomposition reaction. The Copper Oxide test showed that theoretically there should be no reaction with HCl. Copper Carbonate, however, theoretically, should react. Evaluation: Overall, the experiment was a success except for the fact that the HCl shouldn'thave reacted with the Copper Oxide but did. This is probably due to the fact there was some Copper Carbonate still stuck to the side of the test tube and the HCl reacted with that.
What acid is used to make copper sulphate?
Sulfuric acid is commonly used to make copper sulfate by reacting it with copper oxide or copper carbonate. The reaction forms copper sulfate and water, with sulfuric acid providing the necessary protons for the reaction.
What does magnesium and copper oxide make?
When magnesium is heated with copper oxide, it forms magnesium oxide and copper. The reaction can be represented as: Mg + CuO → MgO + Cu
Copper sulfate and sodium carbonate physical or chemical change?
When copper sulfate and sodium carbonate are mixed together, a chemical reaction occurs. This reaction forms copper carbonate, a new substance with different properties than the reactants. Therefore, the mixing of copper sulfate and sodium carbonate is a chemical change.
What does copper plus oxygen make?
Copper Oxide
Which compounds make up copper carbonate?
Copper carbonate is composed of copper, carbon, and oxygen atoms. Its chemical formula is CuCO3.
How is copper oxide made?
2Cu + O2 --> 2CuOIn air and water, or where oxygen reacts with copper. Google verdigris.There are several methods,"Heating Copper metal in air."Heating Copper carbonate."Heating Copper hydroxide."Reacting Cuprous chloride with KMnO4.
What does copper and oxgyen make?
Copper oxide, which is a compound from the two elements copper and oxygen. When copper is exposed to oxygen for a long period of time, it begins turning green. The green is Copper oxide.Copper oxide can refer toCopper(I) oxide (cuprous oxide, Cu2O), a red powder;Copper(II) oxide (cupric oxide, CuO), a black powder. (Source wikipedia)
What is mixed with copper oxide to make copper sulphate?
Sulphuric acid
What else do you need apart from oxygen to make CuCO3?
Copper and carbon along with oxygen make up copper(II) carbonate. However you cannot make it simply by mixing them together. A possible pathway might be to get to sodium carbonate perhaps CO2 + NaOH might be the way and then make some copper sulfate by reacting it with H2SO4, mix your sodium carbonate solution with copper sulfate solution and copper carbonate should precipitate out.
