Podcast
Questions and Answers
Which property is associated with acids rather than alkalis?
Which property is associated with acids rather than alkalis?
- Can react with grease
- Have a slippery feel
- Some have a bitter taste
- Have a sour taste (correct)
What is the primary function of hydrochloric acid in toilet cleaners?
What is the primary function of hydrochloric acid in toilet cleaners?
- To create foam for better cleaning
- To provide a slippery surface
- To add a sweet scent
- To react with dirt and stains and make them easier to remove. (correct)
Which of the following is a characteristic function of sodium hydroxide?
Which of the following is a characteristic function of sodium hydroxide?
- Causes an acidic reaction with fruits
- Removes grease from kitchen surfaces (correct)
- Used for food preservation
- Forms a bitter taste in food
In noodle production, what is the role of lye water?
In noodle production, what is the role of lye water?
Which statement about the uses of acids and alkalis is accurate?
Which statement about the uses of acids and alkalis is accurate?
What gives vinegar its characteristic sour taste?
What gives vinegar its characteristic sour taste?
Which of the following foods contains alkalis?
Which of the following foods contains alkalis?
Which household product is known to contain an alkali?
Which household product is known to contain an alkali?
What is a common characteristic of alkalis when touched?
What is a common characteristic of alkalis when touched?
Which of the following is NOT a common acid used in laboratories?
Which of the following is NOT a common acid used in laboratories?
Which type of acid is commonly associated with soft drinks?
Which type of acid is commonly associated with soft drinks?
Why should acids and alkalis, especially household cleaners, be handled with care?
Why should acids and alkalis, especially household cleaners, be handled with care?
What is a typical taste associated with alkalis?
What is a typical taste associated with alkalis?
What should you do if acids or alkalis splash onto your skin?
What should you do if acids or alkalis splash onto your skin?
Which acid is known for being stored in dark-colored reagent bottles due to its light sensitivity?
Which acid is known for being stored in dark-colored reagent bottles due to its light sensitivity?
What is a common use for acids in daily life?
What is a common use for acids in daily life?
What should be done after handling acids or alkalis in the laboratory?
What should be done after handling acids or alkalis in the laboratory?
What is a characteristic of most acids and alkalis used in laboratories?
What is a characteristic of most acids and alkalis used in laboratories?
Flashcards
Acid
Acid
A substance that has a sour taste and is often found in foods and drinks.
Alkali
Alkali
A substance that has a slippery feel and may have a bitter taste.
Ethanoic acid
Ethanoic acid
A common type of acid found in vinegar.
Hydrochloric acid
Hydrochloric acid
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Sulphuric acid
Sulphuric acid
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Nitric acid
Nitric acid
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Baking soda
Baking soda
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Bleach
Bleach
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Sodium hydroxide
Sodium hydroxide
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Why is Nitric Acid stored in dark bottles?
Why is Nitric Acid stored in dark bottles?
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Safety Precautions with Acids and Alkalis
Safety Precautions with Acids and Alkalis
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Emergency Treatment: Acid/Alkali on Skin
Emergency Treatment: Acid/Alkali on Skin
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Emergency Treatment: Acid/Alkali in Eyes
Emergency Treatment: Acid/Alkali in Eyes
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Emergency Treatment: Acid/Alkali on Clothes
Emergency Treatment: Acid/Alkali on Clothes
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Vinegar as a Food Preservative
Vinegar as a Food Preservative
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How do Acids Preserve Food?
How do Acids Preserve Food?
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Uses of Acids and Alkalis
Uses of Acids and Alkalis
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Study Notes
Common Acids and Alkalis
- Acids are substances that taste sour
- Alkalis are substances that feel slippery and some have a bitter taste
- Vinegar contains ethanoic acid which gives it a sour taste
- Many foods and drinks contain acids
- Some household products contain acids
- Some household products contain alkalis
- Chinese noodles and lye water rice dumplings contain alkalis
- Alkalis can be found in kitchen cleaners, bleach, alkaline batteries, and toothpaste
- Acids and alkalis are often used in laboratories
- Common laboratory acids include hydrochloric acid, sulphuric acid, and nitric acid
- Common laboratory alkalis include sodium hydroxide, ammonia solution, and calcium hydroxide (lime water)
- Acids and alkalis can be corrosive and should be handled carefully
- Acids have a sour taste
- Alkalis have a slippery feel and some have a bitter taste
- Acids can be used for food preservation
- Vinegar, commonly used as a food preservative, is an acid
- Alkalis can also be used for food preservation
- Lye water can be used in making noodles
- Hydrochloric acid is found in some toilet cleaners and can remove stains
- Sodium hydroxide is found in some kitchen cleaners and can remove grease
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