alleryStart learning →In a chemical equation, what does the abbreviation aq written after a formula indicate?
AThe substance is a pure solid
BThe substance is a pure liquid
CThe substance is dissolved in water
DThe substance is a gas at the time
Answer & Solution
Correct answer: C. The substance is dissolved in water
1. State symbols are written in brackets straight after a formula.
2. The letter s marks a solid, l a liquid and g a gas.
3. The letters aq mark an aqueous solution, that is, a substance dissolved in water.
4. So aq tells you the species is in solution, not in a pure phase of its own.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 4 "Stoichiometry of Chemical Reactions", section 4.1 Writing and Balancing Chemical Equations_
Keep practising Stoichiometry of Chemical Reactions
Browse all Stoichiometry of Chemical Reactions questions for NECO SSCE, or explore more Chemistry topics.
Related questions
Pop only the soluble compoundsKnock out the false limiting claimsFill in the percent yield formulaOrder the mass to mass routeBalance the splitting of waterIn the old vinegar test, potassium carbonate was added until bubbling stopped. What gas caBurning 0.00126 g of polyethylene gives 0.00394 g CO2 (44.01 g/mol) and 0.00161 g H2O (18.A 0.4550 g mixture treated with excess Ba(NO3)2 gives 0.6168 g of BaSO4 (233.43 g/mol). Wh