Podcast
Questions and Answers
Aqueous solutions of both acids and bases are able to conduct electricity. Which of the following best explains this property?
Aqueous solutions of both acids and bases are able to conduct electricity. Which of the following best explains this property?
- Acids donate protons and bases accept protons, facilitating electron flow.
- Acids and bases increase the kinetic energy of water molecules, enhancing conductivity.
- Acids and bases dissociate into ions in water, which act as charge carriers. (correct)
- Acids and bases react with water to produce free electrons that carry charge.
Consider a scenario where a metal 'X' reacts with both a strong acid and a strong base to produce hydrogen gas. What can you infer about metal 'X'?
Consider a scenario where a metal 'X' reacts with both a strong acid and a strong base to produce hydrogen gas. What can you infer about metal 'X'?
- Metal 'X' is a transition metal.
- Metal 'X' is a strong reducing agent.
- Metal 'X' is an amphoteric metal. (correct)
- Metal 'X' is a noble metal.
A student tests an unknown solution and finds that it turns red litmus paper blue. Which of the following is the most likely pH range of the solution?
A student tests an unknown solution and finds that it turns red litmus paper blue. Which of the following is the most likely pH range of the solution?
- 8-14 (correct)
- 7
- 4-6
- 0-3
Which statement accurately contrasts the behavior of strong acids and weak acids in aqueous solutions?
Which statement accurately contrasts the behavior of strong acids and weak acids in aqueous solutions?
When an acid reacts with a metal carbonate, such as $CaCO_3$, what products are formed?
When an acid reacts with a metal carbonate, such as $CaCO_3$, what products are formed?
Flashcards
Acids
Acids
Substances that release hydrogen ions (H+) when dissolved in water.
Bases
Bases
Substances that release hydroxide ions (OH-) when dissolved in water.
pH Scale
pH Scale
A scale measuring the acidity or basicity of a solution based on H+ concentration.
Strong Acids
Strong Acids
Acids that completely dissociate into ions in water, producing a high concentration of H+ ions.
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Strong Bases
Strong Bases
Bases that completely dissociate into ions in water, producing a high concentration of OH- ions.
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- This is a chemistry textbook excerpt
Acids, Bases and Salts
- Chapter 2 concerns acids, bases and salts
Properties of Bases
- Bases taste bitter
- Bases turn red litmus blue
- Bases give OH- ions in aqueous solution
- Bases conduct electricity in aqueous solution
Acids, Bases and Salts Properties
- Acids, bases and salts properties can be divided into physical and chemical properties
- Alkali reacts with metal to liberate H2
- Bases react with acidic oxides to form water
Classifying Acids, Bases and Salts
- Acids, bases, and salts are classified on the basis of pH scale
- pH scale expresses H+ ion concentration of the solution
- On the pH scale, 7 is neutral.
- Numbers below 7 indicate increasing acidic nature.
- Numbers above 7 indicate increasing basic nature
Acids and Bases
- Acids give H+ ions in aqueous solution
- Bases give OH- ions in aqueous solution
- Acids and bases neutralize each other, where the products are salts and water
Acids, Bases and Salts Types
- Strong Acids
- Weak Acids
- Concentrated Acids
- Dilute Acids
- Strong Bases
- Weak Bases
- Alkalis
- Salts
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