Acids and Bases Quest

Froggy Jumps

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pH basics for grade 7

Abegail Atienza

Philippines

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Acids and Bases Quest


Froggy Jumps Acids and Bases QuestVersion en ligne pH basics for grade 7 par Abegail Atienza 1 What is a common property of acids? a Acids feel slippery like soap b Acids turn blue litmus paper red. c Acids taste bitter 2 What is a common property of bases? a Bases turn blue litmus paper red b Bases taste sour c Bases turn red litmus paper blue. 3 What does a pH less than 7 indicate? a A neutral substance b An acid c A base 4 Name a common acid used in chemistry. a Ammonia (NH3) b Sodium hydroxide (NaOH) c Hydrochloric acid (HCl) 5 Name a common base used in schools. a Sodium hydroxide (NaOH) b Hydrochloric acid (HCl) c Acetic acid (CH3COOH) 6 What is the general result of an acid reacting with a base? a Gas and water b Only salt c Salt and water 7 Which indicator is commonly used to distinguish acids and bases? a Litmus paper b Biuret reagent c Benedict’s solution 8 How do bases typically feel? a Slippery b Brittle c Sour 9 Give a everyday example of an acid. a Citric acid in lemons b Soap in water c Baking soda in water 10 Give an everyday example of a base. a Baking soda (sodium bicarbonate) b Vinegar (acetic acid) c Lemon juice (citric acid)