"Acidic" is an appropriate description for four of the following. Which one is the exception? A). Soup and ammonia

B). HCI

C). Excess hydrogen ions

D). The contents of the stomach

E). A pH less then 7

E) A pH less than 7

Explanation:

if a solution has a higher concentration of hydronium ions than pure water , it has a pH lower than 7

the overall balanced equation

6co2 + 6h2o > c6h12o6 + 6o2

sunlight energy

where: co2 = carbon dioxide

h2o = water

light energy is required

c6h12o6 = glucose

o2 = oxygen

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