Examlex
Which of the following compounds is not an Arrhenius acid?
Open Sentence
A statement or equation that contains one or more variables, which makes it neither true nor false until the variables are specified.
Variable
An element, feature, or factor that is liable to vary or change.
Closed Sentence
A statement or equation that contains no variables and is either true or false.
Variable
A component, attribute, or aspect that is subject to change or variation.
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