Chemical Changes Flashcards
Understanding of chemical changes began when
people began experimenting with chemical reactions in a systematic way and organizing their results logically.
Metals react with oxygen to produce
metal oxides.
What’s the reaction called if the atom gains oxygen?
Oxidation reactions
When metals react with other substances the metal atoms?
Form positive ions
The reactivity of a metal is related to its
tendency to form positive ions.
A more reactive metal can displace a
Less reactive metal from a compound
most metals are found as
compounds that require chemical reactions to extract the metal.
Unreactive metals such as gold are found in the Earth as
The metal itself
Metals less reactive than carbon can be
extracted from their oxides by reduction with carbon.
Reduction involves the loss
Of oxygen
