Podcast
Questions and Answers
What is one common property of all acids?
What is one common property of all acids?
- Turn red litmus blue
- Bitter taste
- H+ ions (correct)
- Sour taste
Which type of indicator is turmeric?
Which type of indicator is turmeric?
- Acidic indicator
- Olfactory indicator
- Natural indicator (correct)
- Synthetic indicator
What is the product when base reacts with a metal?
What is the product when base reacts with a metal?
- Salt + Water
- Metallic Oxide + Water
- Salt + Oxygen gas
- Salt + Hydrogen gas (correct)
In the reaction between acid and base, what is formed?
In the reaction between acid and base, what is formed?
Which property distinguishes bases from acids?
Which property distinguishes bases from acids?
What type of salt is produced when a weak acid reacts with a strong base?
What type of salt is produced when a weak acid reacts with a strong base?
What is the correct explanation for the exothermic nature of dissolving acids or bases in water?
What is the correct explanation for the exothermic nature of dissolving acids or bases in water?
What ions do acids produce when dissolved in water?
What ions do acids produce when dissolved in water?
Which statement about the pH scale is accurate?
Which statement about the pH scale is accurate?
What is the pH range within which our bodies normally function?
What is the pH range within which our bodies normally function?
Which substance is commonly used in the textile industry for bleaching cotton and linen?
Which substance is commonly used in the textile industry for bleaching cotton and linen?
Which compound is used by doctors for supporting fractured bones?
Which compound is used by doctors for supporting fractured bones?
Study Notes
Acids and Bases
- All acids have the common property of donating a proton (H+ ion).
- Turmeric is a natural indicator, and it changes color in the presence of acids or bases.
Reaction between Acids and Bases
- When a base reacts with a metal, it produces hydrogen gas.
- The reaction between an acid and a base forms a salt and water.
Properties of Bases
- Bases are distinguished from acids by their ability to accept a proton (H+ ion).
Salt Formation
- When a weak acid reacts with a strong base, a basic salt is produced.
Dissolving Acids and Bases
- The exothermic nature of dissolving acids or bases in water is due to the release of heat energy during the process.
Acids in Water
- Acids produce H+ ions when dissolved in water.
pH Scale
- The pH scale is a logarithmic scale that measures the concentration of H+ ions in a solution.
- A pH range of 7-8 accurately represents the pH scale.
Human Body and pH
- The human body normally functions within a pH range of 7.35-7.45.
Applications of Chemicals
- Sodium hypochlorite is commonly used in the textile industry for bleaching cotton and linen.
- Plaster of Paris (calcium sulfate hemihydrate) is a compound used by doctors for supporting fractured bones.
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Description
Test your knowledge on acids, bases, salts, and indicators. Learn about the properties of acids and bases, the formation of salts, and the different types of natural and synthetic indicators used in chemistry.
