Do you know the definition of an Arrhenius acid? The modified definition is:
An acid is a substance that produces H^+ when in water solution and more modern forms suggest replacing H^+ with H3O^+ (hydrogen ion with hydronium ion).
So H2S + H2O ==> H3O^+ + S^-2 so H2S is an Arrhenius.
I call SO2 an Arrhenius acid, also, because it reacts with water to form
SO2 + H2O ==>H2SO3 (sulfurous acid) which then dissociates to
H2SO3 + H2O ==> H3O^+ + SO3^-2
Which of the fallowing compounds may be Arrhenius acids: CH4, SO2, H2S, Ca3(PO4)2
Can you please explain how you got the answer because I don't understand how you can tell.
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