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2010-06-10 16:44:15
2010-06-10 16:44:15

When they are mixed, a displacement chemical reaction occurs in which Magnesium replaces hydrogen from sulphuric acid forming magnesium sulphate ang giving out hydrogen.


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No, hydrogen would be released from sulphuric acid. Magnesium + Sulfuric Acid --> Magnesium Sulphate + Hydrogen

Chemical Change because a gas was release when they were mixed together.

Mg(OH)2 + H2SO4 -> MgSO4 + 2H2OLooks like magnesium sulfate.

sulphuric acid is a compound.It is not sulfur dioxide and water.The formula is H2SO4Sulphuric acid is the product of the chemical reaction that occurs when sulfur trioxide and water are mixed.

If the two substances react when mixed together it is a chemical change. If they don't react it is a physical change.

Iron oxide + Sulphuric Acid iron sulphate + water

A soap and water mixed together is a physical change

No, there is not a chemical change in either the vinegar or the water.

Sulfuric acid can be mixed with water but doesn't react.

It depends what it is mixed with.

when aluminium is mixed with sulphuric acid we get aluminium sulphate which is a salt

Chemical, When something changes in color, it is a sign of a chemical change.

Magnesium oxide does not "dissolve" in hydrochloric acid. Dissolution is a physical change. When magnesium oxide is mixed with hydrochloric acid, a chemical reaction takes place: Mg(s) + 2HCl ---> MgCl2(aq) + H2(g)

Chemical change: The clear liquids are potassium iodide and lead nitrate. When mixed, they form a new chemical--lead iodide.

Nitrogen being heated and turned into nitrogen gas or being mixed with another chemical would be a chemical change

its a chemical change because you cannot reverse the process and just have milk and vinegar separate

It is a chemical change, a reaction; sodium acetate is obtained.

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