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en.wikipedia.org/wiki/Aqueous_solution

An aqueous solution is a solution in which the solvent is water. It is usually shown in chemical equations by appending (aq) to the relevant chemical formula.

www.gcsescience.com/a18-chemical-equations-state-symbols.htm

The State Symbols used in Chemical Equations and How to Know if a Substance is Solid, Liquid or Gas.

www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/periodic_table/chemicalequationsrev2.shtml

... school revision resource for OCR GCSE Additional Science about the periodic table and chemical equations. ... 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g).

www.physicsforums.com/threads/writing-chemical-equations-is-it-a-gas-or-aqueous-solution.545175

When writing chemical equations involving acidic or basic solutions, I know that the acid on the reactant side is written with the state (aq).

intro.chem.okstate.edu/1314F00/Lecture/Chapter4/Lec92700.html

We use the chemical formulas of substance to represent each chemical specie involved in the reaction. We also use the notation (g), (l), (s), or (aq) following the  ...

www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/mass-relationships-and-chemical-equations-3/experimental-data-and-empirical-formulas-43/writing-chemical-equations-226-7093

Chemical equations should contain information about the state properties of products and reactants, whether aqueous (dissolved in water -- aq), solid (s), liquid ...

www.ask.com/youtube?q=What+Is+Aq+in+Chemistry&v=UD7WlSMmXdM
May 5, 2011 ... In chemical equations it may be important to know the states, which are abbreviated as: (s) solid (l) liquid (g) gas (aq) aqueous (in water) Other ...

www.shodor.org/appstchem/basic/stoic

Stoichiometry is the accounting, or math, behind chemistry. ... The (aq) sign stands for aqueous in water and means the compound is dissolved in water. Finally ...

www.harpercollege.edu/tm-ps/chm/100/dgodambe/thedisk/chemrxn/rxnintr2.htm

Symbols in Chemical Equations ... (aq), indicates that the substance is dissolved in water - the aq comes from aqueous. indicates that heat is applied to make the ...