40. Which of the following contains the most of hydrogen ions? A 400 cm of 1 mol dm- sulphuric acid
B 700 cm of 1 mol dm- ethanoic acid
C 600 cm of 1 mol dm'hydrochloric acid
D 400 cm of 1 mol dm- sodium hydroxide​

Option C

Explanation:

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can you do a favour to introduce yourself

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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