 |  Acids, Bases and Salts 34 Flashcards |  Start |
 | What defines an acid in terms of pH and ion concentration? |  Card: 1 / 34 |
| An acid is defined as a chemical compound with a pH value less than 7, indicating a higher concentration of hydrogen ions (H⁺) than hydroxide ions (OH⁻). | Card: 2 / 34 |
| Strong acids completely dissociate in water. True or False? | Card: 3 / 34 |
| True. Strong acids, like HCl and H₂SO₄, dissociate completely or almost completely in water. | Card: 4 / 34 |
| Fill in the blank: Bases are characterized by a pH value that is ___ than 7
| Card: 5 / 34 |
| Greater | Card: 6 / 34 |
| What happens when an acid reacts with a metal? | Card: 7 / 34 |
| When an acid reacts with a metal, it undergoes a displacement reaction, producing a salt and releasing hydrogen gas. | Card: 8 / 34 |
| Identify the product formed when zinc reacts with dilute hydrochloric acid. | Card: 9 / 34 |
| Zinc chloride (ZnCl₂) and hydrogen gas (H₂) are formed. | Card: 10 / 34 |
| What is the general reaction when an acid reacts with a metal carbonate? | Card: 11 / 34 |
| The reaction produces a salt, carbon dioxide (CO₂), and water (H₂O). | Card: 12 / 34 |
| Fill in the blank: The neutralization reaction between an acid and a base produces ___ and ___. | Card: 13 / 34 |
| Salt and water  | Card: 14 / 34 |
| What distinguishes strong bases from weak bases? | Card: 15 / 34 |
| Strong bases completely ionize in water, producing a large number of hydroxide ions, while weak bases partially ionize. | Card: 16 / 34 |
| True or False: All metals react with bases to form salts. | Card: 17 / 34 |
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| False. Not all metals react with bases; only more reactive metals can do so. | Card: 18 / 34 |
| Short answer: What role do indicators play in identifying acids and bases? | Card: 19 / 34 |
| Indicators change color in the presence of acids or bases, allowing for their identification without tasting. | Card: 20 / 34 |
| Fill in the blank: The pH scale ranges from ___ to ___. | Card: 21 / 34 |
| 0 to 14  | Card: 22 / 34 |
| What happens when CO₂ is passed through lime water? | Card: 23 / 34 |
| Lime water turns milky due to the formation of calcium carbonate (CaCO₃). | Card: 24 / 34 |
| How does the pH of a solution indicate its acidity or basicity? | Card: 25 / 34 |
| A pH less than 7 indicates an acidic solution, a pH of 7 indicates neutrality, and a pH greater than 7 indicates a basic solution. | Card: 26 / 34 |
| Fill in the blank: Salts formed from strong acids and strong bases have a pH of approximately ___. | Card: 27 / 34 |
| 7  | Card: 28 / 34 |
| What is the chemical formula of Plaster of Paris? | Card: 29 / 34 |
| The chemical formula of Plaster of Paris is CaSO₄·½ H₂O. | Card: 30 / 34 |
| True or False: All acids taste sour. | Card: 31 / 34 |
| True. Acids are characterized by a sour taste. | Card: 32 / 34 |
| What is the primary use of bleaching powder? | Card: 33 / 34 |
| Bleaching powder is primarily used as a bleaching agent in the textile industry and as a disinfectant. | Card: 34 / 34 |
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