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Flashcards on Chemistry: Acids and Bases
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What is an acid?
A substance that donates protons or accepts electrons.
What is a base?
A substance that accepts protons or donates electrons.
What does the pH scale measure?
The acidity or alkalinity of a solution.
Which pH value represents a neutral solution?
pH 7
What is the chemical formula of hydrochloric acid?
HCl
What is the chemical formula of sodium hydroxide?
NaOH
What is the role of acids in digestion?
Acids help in the breakdown of food in the stomach.
What is the role of bases in cleaning products?
Bases help in breaking down grease and stains.
What are the properties of acids?
Sour taste, turn blue litmus paper red, react with metals to produce hydrogen gas.
What are the properties of bases?
Bitter taste, turn red litmus paper blue, feel slippery.
What is the chemical equation for the reaction of an acid with a base?
acid + base -> salt + water
Which acid is found in citrus fruits?
Citric acid
Which base is commonly used in antacids to neutralize stomach acid?
Magnesium hydroxide
What is the pH value of a strong acid?
pH 0 to 1
What is the pH value of a strong base?
pH 13 to 14
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Test Your Knowledge
Which of the following describes an acid?
A substance that donates protons or accepts electrons.
A substance that accepts protons or donates electrons.
A substance that donates electrons or accepts protons.
A substance that accepts electrons or donates protons.
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Which pH value represents a neutral solution?
pH 0
pH 7
pH 14
pH 5
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What are the properties of bases?
Sour taste, turn blue litmus paper red, react with metals to produce hydrogen gas.
Bitter taste, turn red litmus paper blue, feel slippery.
Sour taste, turn red litmus paper blue, feel slippery.
Bitter taste, turn blue litmus paper red, feel slippery.
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Which acid is found in citrus fruits?
Ascorbic acid
Citric acid
Acetic acid
Sulfuric acid
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What is the chemical formula of sodium hydroxide?
HCl
H2SO4
NaOH
KOH
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What is the role of acids in digestion?
Breaking down grease and stains
Maintaining the pH balance of the body
Helping in the breakdown of food in the stomach
Neutralizing the effect of excess base
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What does the pH scale measure?
Temperature of a solution
The acidity or alkalinity of a solution
Concentration of solute in a solution
Density of a solution
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Which acid is commonly used in batteries?
Sulfuric acid
Phosphoric acid
Nitric acid
Hydrochloric acid
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What is the pH value of a strong base?
pH 0 to 1
pH 7
pH 13 to 14
pH 4 to 5
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What is the chemical equation for the reaction of an acid with a base?
acid + base -> salt + water
acid + base -> salt + oxygen
acid + base -> salt + water
acid + base -> salt + carbon dioxide
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