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What colour does hydrous copper sulphate turn when heated?
Hydrous copper sulphate, when heated, turns into anhydrous copper sulphate and changes its color from blue to white. The blue color comes from the water molecules bound to the copper sulphate crystals, and when heated, these water molecules are removed, resulting in a color change.
What does copper oxide turn into when it is heated?
brown
What colour is the flame of copper sulphate when heated?
it is like the color but gold more
What colour is copper II carbonate when it is heated?
CuCO3 is bluish-greenish-white. If it is heated to a high enough temperature, it will decompose into Carbon Dioxide and Copper II Oxide, which is black.
What will happen if hydrogen gas is heated over copper oxide?
the copper oxide will turn red
What colour does copper chloride turn in Universal indicator?
Bronze
Why the colour of heated copper powder becomes black when air is passed over it?
When air is passed over heated copper powder, the copper undergoes oxidation, forming copper oxide. Copper oxide is black in color, which is why the heated copper powder appears black when air is passed over it.
What happenened to the copper sulfate when heated?
When heated in an open flame the crystals are dehydrated and turn grayish-white. -www.wikipedia.com
What solid residue will turn from green to black if heated?
Copper(II) nitrate will turn from green to black when heated due to the decomposition of the compound. The green color is due to the presence of copper ions, which decompose into copper oxide when heated, resulting in the color change to black.
Why blue crystals of copper sulphate on heating turn colourless?
The formula of the blue crystals of copper sulphate is CuSO4.5H2O. When they are heated mildly, the water from the crystals evaporate, giving just CuSO4. This 'anhydrous' form of copper (II) sulphate is white in colour.
What colour does blue copper chloride turn when moistened?
A darker shade of blue.
What is the colour of chloroform when heated?
Chloroform is a colorless liquid at room temperature. When heated, it may turn to a colorless gas.
