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Why does copper sulphate and sodium carbonate mixed together turn green?
When copper sulfate (blue) and sodium carbonate (colorless) are mixed, a chemical reaction occurs that forms copper carbonate as a product, which is green in color. The green color comes from the copper carbonate that is insoluble in water and precipitates out when the two solutions are mixed.
What residue is left behind when copper carbonate is hot or cold?
When copper carbonate is heated, it decomposes to form copper oxide and carbon dioxide gas, leaving behind copper oxide residue. When copper carbonate is mixed with acids to produce copper salts, a blue residue may be left behind.
What is the precipitate of copper sulphate and sodium carbonate?
The precipitate formed when copper sulfate and sodium carbonate are mixed is copper carbonate. This reaction occurs because copper carbonate is insoluble in water and therefore forms a solid precipitate.
What kind of precipitate forms from copper chloride and sodium carbonate?
Copper carbonate would precipitate if you combined solutions of copper (II) chloride and sodium carbonate.
Is copper carbonate a soluble solid?
Copper carbonate is not very soluble in water. When mixed with water, only a small amount of copper carbonate will dissolve, resulting in a cloudy blue solution.
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.
Why does copper carbonate make greenium a compound?
Copper carbonate reacts with acid to form copper II ions which are blue-green in color. When these copper ions are mixed with hydroxide ions they form copper hydroxide which is then oxidized to form green copper oxide. This green pigment mixed with other materials becomes "greenium."
What happens to copper when mixed with limewater?
When copper is mixed with limewater, no immediate reaction occurs. Limewater is a solution of calcium hydroxide, which is not reactive with copper. However, if copper is exposed to air and moisture over time, it may develop a greenish layer of copper carbonate on its surface.
What happens when you mix copper carbonate with hydrochloric acid?
When copper carbonate is mixed with hydrochloric acid, a chemical reaction occurs which produces copper chloride, carbon dioxide gas, and water. The copper carbonate will dissolve and react with the hydrochloric acid to form a blue-green solution. The carbon dioxide gas bubbles out of the solution, creating fizzing or effervescence.
What gas does hydrochloric acid produce when mixed with magnesium carbonate?
The gas carbon dioxide is released.
What gas would you get if you mixed nitric acid and calcium carbonate produce?
If nitric acid is mixed with calcium carbonate, carbon dioxide gas would be produced along with calcium nitrate and water.
What is heated with calcium carbonate to make cement?
Limestone, which contains calcium carbonate, is heated in a kiln to produce lime. This lime is a key ingredient in the production of cement when mixed with other materials such as sand and water.
