The smallest among these 4 groups is Order . Explanation: The arrangements for classification are Kingdom , Phylum , Class , Order , Family , Genus , Species .
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The hydronium ion is an oxonium ion whose chemical formula is H3O + or H + (aq). It is found in the solid, gaseous or liquid state (protonation of a molecule of water).
The concentration of hydronium ion is directly linked to the pH of the tea (or any solution) by this equation.:
C° (hydronium) = 10^(-pH)
if the pH of the tea is 6 for example, than:
C° (hydronium) = 10^(-pH) = 10^(-6).
Answer is 3 it uses chemical and physical changes when using stomach acid and physical when turning food in your stomach.
