Question

states and significans of symbols =science

Answer 1

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State symbols

Sometimes it is useful to know whether the reactants and products in a chemical reaction are solids, gases, liquids or dissolved in water. We can add state symbols to a symbol equation to show this.

State symbol and meaning

Symbol Meaning

(s) solid

(l) liquid

(g) gas

(aq) aqueous (dissolved in water)

So for the reaction between sodium and water, this is the symbol equation with state symbols:

2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

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