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What happens when heating magnesium hydroxide?
The magnesium oxide (MgO) is obtained and water vapours released.
How was magnesium discovered and by whom was it discovered?
Magnesium (Mg) was first obtained by English chemist Sir Humphry Davy in 1808. He produced it from the electrolysis of a mixture of magnesium oxide and mercuric oxide.
Is magnesium combined with other elements?
Magnesium on heating reacts with oxygen and halogens but it also reacts with nitrogen.
Heating a white substance produces a vapor and black material Was the substance an element or a compound?
compound as it decomposed into two separate things.
What happens when you mix nitrogen and magnesium?
magnesium nitride (Mg3N2) is formed upon heating magnesium and nitrogen.
What happens when iron III sulphate is heated?
By heating this compound is thermally dissociated: iron oxide and sulfur dioxide are obtained.
What happens when magnesium carbonate is calcined?
Calcining magnesium carbonate involves heating it strongly to drive off carbon dioxide, leaving behind magnesium oxide. The process decomposes the compound into its constituent parts, resulting in the formation of magnesium oxide as a final product.
Why is it not possible to prepare magnesium by heating magnesium oxide in current hydrogen?
Heating magnesium oxide in current hydrogen will not produce magnesium because the hydrogen gas does not have enough reducing power to convert the magnesium oxide back to magnesium metal. In this reaction, magnesium oxide is already in its most stable oxidation state, so no further reduction occurs.
What happens when magnesium bicarbonate is heated?
When magnesium bicarbonate is heated, it decomposes to form magnesium oxide, carbon dioxide, and water. The decomposition reaction releases carbon dioxide gas, which can be observed as bubbles during the heating process.
How will fumes escape from The Crucible affect the weight of magnesium oxide?
The fumes escaping from The Crucible (during heating magnesium) will contain magnesium oxide (MgO). The weight of magnesium oxide formed inside The Crucible will decrease due to the loss of mass from the escaping fumes. It is essential to account for this weight loss when calculating the final mass of magnesium oxide obtained.
If we mix carbon powder with sulfur powder are they still elements?
At the room temperature they remain elements in a mixure; by heating a compound is obtained, carbon disulfide.
When checking an electric heating element you read voltage but no amperage What can you determine about the heating element?
If you are reading voltage but no amperage on the heating element, it suggests that there is a break in the circuit within the heating element, preventing current flow. This could be due to a burnt-out heating element or a disconnected wire. The heating element likely needs to be replaced.
