The Open Door Web Site
A Closer Look at Metals
Testing for the Chemical Properties of Metals
Heating Magnesium: Magnesium is a metal which burns with a bright white flame.
Mass before heating, m1 = ..... g
Mass after heating, m2 = ...... g
What do you see inside the crucible?
Explain the difference between m1 and m2.
2. Reactions of metals with alkalis. (example: sodium hydroxide)
*safety classes to be worn: Acids are corrosive and alkalis irritants*
3. With water
Metals that react with cold water do so to form a Metal hydroxide + Hydrogen. Examples are sodium, potassium, calcium and magnesium (slowly)
Metals that react with steam do so to form a metal oxide and hydrogen. Examples are zinc and iron.
Several metals do not react at all - for example copper, silver and gold
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