Answer
a) Nitric acid - $HNO_{3}$
b) Perchloric Acid - $HClO_{4}$
c) Acetic acid - $CH_{3}COOH$ $\rightarrow$ [$C_{2}H_{4}O_{2}$]
d) Sulfuric acid - $H_{2}SO_{4}$
e) Phosphoric acid - $H_3PO_{4}$
Work Step by Step
a) Picture contains 1 hydrogen atom, 1 nitrogen atom and 3 oxygen atoms ( 1 hydrogen ion + 1 nitrate ion), and thus acid fitting all the parameters is $\Longrightarrow$ Nitric acid - $HNO_{3}$
b) Picture contains 1 hydrogen atom, 1 chlorine atom and 4 oxygen atoms, and thus acid fitting all the parameters is $\Longrightarrow$ Perchloric Acid - $HClO_{4}$
c) Picture contains 4 hydrogen atoms, 2 carbon atoms and 2 oxygen atoms, and thus acid fitting all the parameters is $\Longrightarrow$ Acetic acid - $CH_{3}COOH$ $\rightarrow$ [$C_{2}H_{4}O_{2}$]
d) Picture contains 2 hydrogen atoms, 1 sulfur atom and 4 oxygen atoms, and thus acid fitting all the parameters is $\Longrightarrow$ Sulfuric acid - $H_{2}SO_{4}$
e) Picture contains 3 hydrogen atoms, 1 Phosphorus atom and 4 oxygen atoms, and thus acid fitting all the parameters is $\Longrightarrow$ Phosphoric acid - $H_3PO_{4}$
