Place the following in the correct order of increasing acidity:H3PO4, HF, HCl, H2O, NH3

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The Praxis General Science: Content Knowledge (5435) exam is a test required by many states for credential candidates planning to teach science at a high school level. It is a single, computer-delivered test that includes questions from five content domains.

The content categories are Scientific Methodology, Techniques, and History; Physical Science; Life Science; Earth and Space Science; and Science, Technology, and Society.


Place the following in the correct order of increasing acidity:<i>H<sub>3</sub>PO<sub>4</sub>, HF, HCl, H<sub>2</sub>O, NH<sub>3</sub></i>