Physical and Chemical Properties of Acids

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What is a common physical property of acids in aqueous solutions?
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They have a sour taste.
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What happens to blue litmus paper when it is placed in an acidic solution?
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Blue litmus paper turns red.
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What is a common chemical property of acids?
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Acids can react with metals to produce hydrogen gas.
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What type of ions do acids release in water?
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Acids release hydrogen ions (H+).
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Describe the electrical conductivity of acidic solutions.
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Acidic solutions conduct electricity because they contain ions.
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How do acids react with bases?
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Acids react with bases to form salt and water in a neutralization reaction.
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What effect do acids have on phenolphthalein?
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Acids turn phenolphthalein colorless.
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What is a characteristic odor of vinegar, an organic acid?
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Vinegar has a pungent, sour smell due to the presence of acetic acid.
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How do concentrations of ions differ in dilute and concentrated acids?
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Concentrated acids have a higher concentration of hydrogen ions than dilute acids.
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Explain how acids can affect certain metals.
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Acids can corrode certain metals by reacting with them to form metal salts and hydrogen gas.
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Can acids change the color of universal indicator? If so, how?
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Yes, acids usually change universal indicator to red, orange, or yellow, depending on their strength.
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What is the pH range generally associated with acids?
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Acids typically have a pH less than 7.
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Describe what happens in a reaction between an acid and carbonate.
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Acids react with carbonates to produce carbon dioxide, water, and a salt.
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Why are acids considered electrolytes?
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Because they release ions in solution, allowing them to conduct electricity.
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Give an example of an organic acid.
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Citric acid, found in citrus fruits, is an example of an organic acid.
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