Chapter 2: Problem 34
Chemicals can be classified as acidic, neutral, or basic, depending on their \(\mathrm{pH}\) measurements. \(\mathrm{A} \mathrm{pH}\) below 7 indicates that a substance is acidic, a \(\mathrm{pH}\) of 7 means that a substance is neutral, and a pH above 7 means that a substance is basic. An indicator is a chemical compound that, when added to a substance, changes color based on the \(\mathrm{pH}\) of the solution. For example, cabbage juice is an indicator that turns blue when added to a basic substance. $$ \begin{array}{|l|l|} \hline \text { Liquid } & \text { pH } \\ \hline \text { apple juice } & 3 \\ \hline \text { water } & 7 \\ \hline \text { acid rain } & 5 \\ \hline \text { ammonia } & 11 \\ \hline \end{array} $$ Based on the information and the table above, which of the following substances, if combined with cabbage juice, would cause the cabbage juice to turn blue? A. apple juice and acid rain B. water C. acid rain D. ammonia
Short Answer
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.