What is the arrow pointing to?

Part A What is the arrow pointing to? O electron hydroxide ion O water molecule O hydronium ion hydrogen ion Submit Part B What is the arrow pointing to? hydrogen ion hydroxide ion water hydronium ion proton Part A What is the arrow pointing to? O electron hydroxide ion O water molecule O hydronium ion hydrogen ion Submit Part B What is the arrow pointing to? hydrogen ion hydroxide ion water hydronium ion proton Part A What is the arrow pointing to? O electron hydroxide ion O water molecule O hydronium ion hydrogen ion Submit Part B What is the arrow pointing to? hydrogen ion hydroxide ion water hydronium ion proton

Each water molecule is made up of two hydrogen atoms and one
oxygen atom. Oxygen is large and marked by red color and hydrogen
is a small atom marked by grey color. A water molecule can
dissociate into hydrogen ion (H+) and hydroxide ion (OH-).
H2O –> H+ + OH-
The H+ ion when combines with another water molecule a hydronium
ion (H3O+) is formed.
H+ + H2O –> H3O+
Part A
The correct option is hydrogen ion, as only single hydrogen atom
with the positive charge is shown
Part B
The correct option is hydroxide ion, as the arrow shows a
molecule with an oxygen atom and a hydrogen atom with a negative
charge on it.
Part C
The correct option is Hydrogen ion concentration is equal to
hydroxide ion. Each water molecule dissociates into a hydrogen ion
and a hydroxide ion. Water is a neutral solution since the two
charges balance each other. If hydrogen ion is more than the
solution is acidic and vice-versa.
Part-D
The correct option is the right solution is basic as compared to
the solution in the right. The right side solution shows a lot of
Hydrogen ions and neutral water molecules, indicating that hydrogen
ions are in excess than hydroxide ions. It implies that the
solution is acidic. The solution on the left shows an excess of
hydroxide ions as compared to neutral water molecules. This
indicates that the solution in the right has an excess of hydroxide
ion, thus, it is basic.

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