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Common Acids The table lists some common acids. Which element do they all have in common?.

Common Acids The table lists some common acids. Which element do they all have in common?. What is an acid?. An acid is a substance that produces hydrogen ions when dissolved in water. Nearly all acid molecules contain hydrogen atoms. (H)

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Common Acids The table lists some common acids. Which element do they all have in common?.

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  1. Common Acids The table lists some common acids. Which element do they all have in common?.

  2. What is an acid? • An acid is a substance that produces hydrogen ions when dissolved in water. • Nearly all acid molecules contain hydrogen atoms. (H) • When an acid mixes with water, the hydrogen atom separates from the acid. Because of this, we also say that acids produce hydrogen ions(H+). in solution.

  3. Common Bases The table lists some common bases. Which element(s) do they all have in common?.

  4. What is a base? • A base is a substance that produces hydroxide ions (OH-) when dissolved in water. • When a base like sodium hydroxide (NaOH) dissolves in water, hydroxide ions separate from sodium ions. • This separation is called dissociation.

  5. Dissociation is a PHYSICAL process! • When acids, bases, and salts dissolve in water, their atoms are separated… • https://www.youtube.com/watch?v=EBfGcTAJF4o • but, when the water evaporates, they simply re-join. • https://www.youtube.com/watch?v=mvvNruJ-8LY

  6. What are the properties of acids and bases?

  7. The pH Scale The pH scale helps classify solutions as acidic or basic. It is a measure of the concentration of H+ ions. What is the pH of the substances in the boxes? Pure Water Lime Juice Antacid Blood Hydrochloric Acid Vinegar Draino Baking Soda ACIDIC NEUTRAL BASIC

  8. Neutralization What would be the appropriate color to indicate the pH levels?

  9. Common Salts The table lists common salts produced from neutralization reactions. Complete the table with the formula for each salt.

  10. Predict the pH Where on the pH scale does each item belong? Soap Tomato Ammonia

  11. Acid and Base Properties Which common items are acids and which are bases?

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