copper and oxygen
Copper (Cu), sulfur (S), and oxygen (O) are the elements that make up the compound copper(II) sulfate (CuSO4).
You get a grey powder because magnesium is higher up in the reactivity series than Copper - (magnesium is more reactive than copper) therefore when you heat it up there is a displacement reaction. That grey powder is actully magnesium oxide and copper e.g Copper oxide + magnesium = magnesium oxide and copper.
Copper is a chemical element that exists in nature in its elemental form, meaning as individual copper atoms. However, when combining with other elements, it can form compounds such as copper oxide (CuO) or copper sulfate (CuSO4), which are made up of multiple copper atoms bonded to other elements.
Mercuric oxide is made up of the elements mercury and oxygen. It is also called mercury(II) oxide, and has the formula unit HgO.
A copper compound is a substance composed of copper atoms bonded to other elements such as oxygen, sulfur, chloride, or carbonate. Common examples include copper oxide (CuO), copper sulfate (CuSO4), copper chloride (CuCl2), and copper carbonate (CuCO3).
copper oxide---> copper + oxygen
Calcium (Ca) and Oxygen (O) are the two elements that make up calcium oxide.
Copper (Cu), sulfur (S), and oxygen (O) are the elements that make up the compound copper(II) sulfate (CuSO4).
You get a grey powder because magnesium is higher up in the reactivity series than Copper - (magnesium is more reactive than copper) therefore when you heat it up there is a displacement reaction. That grey powder is actully magnesium oxide and copper e.g Copper oxide + magnesium = magnesium oxide and copper.
copper oxide
When copper oxide reacts with carbon, carbon reduces copper oxide to produce copper metal and carbon dioxide. The balanced chemical equation for this reaction is: CuO + C -> Cu + CO₂. This is a redox reaction where copper is reduced from a higher oxidation state in copper oxide to its elemental form, while carbon is oxidized from its elemental form to carbon dioxide.
Copper oxide is a compound made up of copper and oxygen atoms. It is not considered a single atom itself, but rather a combination of atoms bonded together.
Mercuric oxide is made up of the elements mercury and oxygen. It is also called mercury(II) oxide, and has the formula unit HgO.
Copper is a chemical element that exists in nature in its elemental form, meaning as individual copper atoms. However, when combining with other elements, it can form compounds such as copper oxide (CuO) or copper sulfate (CuSO4), which are made up of multiple copper atoms bonded to other elements.
A copper compound is a substance composed of copper atoms bonded to other elements such as oxygen, sulfur, chloride, or carbonate. Common examples include copper oxide (CuO), copper sulfate (CuSO4), copper chloride (CuCl2), and copper carbonate (CuCO3).
When copper burns, it undergoes a chemical reaction with oxygen in the air to form copper oxide. This reaction releases heat and produces a colorful flame that is typically green or blue. Copper oxide residue is left behind after the burning process.
Copper carbonate is made up of the elements copper, carbon, and oxygen.