explain that compounds are formed by chemical reactions.give an example to support your answeri
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Define chemical equation. ... For example, one chemical property of hydrogen is that it will react with oxygen to make water. ... and form a new ionic compound that does not dissolve; this new compound falls ...
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Compounds are formed from simpler substances by chemical reaction. Other compounds are formed by reaction of an element with another compound.
For example → Sodium hydroxide (NaOH) is formed (and hydrogen gas released) by the reaction of sodium metal with water:
2Na + 2H2O → 2NaOH + H2.
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