Question

The equations here are different from those in mathematics, In equations e of this kind, the arrow implies becomes' . No attempt should be made to balance chemical equations at this stage, can I have the meaning of this.​

Answer 1

Symbol Meaning

+ used to separate one reactant or product from another

used to separate the reactants from the products - it is pronounced "yields" or "produces" when the equation is read

used when the reaction can proceed in both directions - this is called an equilibrium arrow and will be used later in the course

(g) indicates that the substance is in a gaseous state

an alternative way of representing a substance in a gaseous state

(s) indicates that the substance is in a solid state

an alternative way of representing a substance in a solid state

(aq) indicates that the substance is dissolved in water - the aq comes from aqueous

indicates that heat is applied to make the reaction proceed

Answer 2

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Symbol Meaning

+ used to separate one reactant or product from another

used to separate the reactants from the products - it is pronounced "yields" or "produces" when the equation is read

used when the reaction can proceed in both directions - this is called an equilibrium arrow and will be used later in the course

(g) indicates that the substance is in a gaseous state

an alternative way of representing a substance in a gaseous state

(s) indicates that the substance is in a solid state

an alternative way of representing a substance in a solid state

(aq) indicates that the substance is dissolved in water - the aq comes from aqueous

indicates that heat is applied to make the reaction proceed