Examlex
A conjugate acid-base pair are two substances related to each other by the transfer of a proton.
Rectangle
A four-sided shape that has four 90-degree angles, with its opposing sides being parallel and of the same length.
Perimeter
The total length around the boundary of a two-dimensional shape.
Falling Object
An object that is under the sole influence of gravity, typically described in physics with equations of motion.
Picture
A visual representation of an object, scene, or person produced on a surface.
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