It is a chemical interchange because a gas has been produced. For H2 to form it must have been a metal reacting with the acid. For norm,

Magnesium + sulfuric acid ---> Magnesium sulfate + Hydrogen gas.

Alastair M | Aug 30, 2007

Physical and Chemical Changes

Video for mean school science teachers to help with the differences between physical and chemical changes.

Balancing Chemical Equations

The art of balancing equations in chemistry!

Bill Nye The Science Guy on Chemical Reactions (Full Clip)

When it comes to chemistry, electrons transform places driven from around by energy chemical energy. Watch your eyes; stick a restrain your ears, and look out ...

Self-assembly method yields materials with unique optical properties

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Source: Self-assembly method yields materials with unique optical properties

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