Examlex
Select the precipitate that forms when aqueous lead(II) nitrate reacts with aqueous sodium sulfate.
Spur Gears
Gears with teeth that are straight and mounted on parallel shafts, commonly used in machinery for transferring motion and power.
Perpendicular
Describes two lines or planes that intersect at a right angle (90 degrees) to each other.
Non-intersecting
Refers to lines, paths, or objects that do not cross each other or share any common points in a given plane or space.
Parallel
Lines or surfaces side by side and having the same distance continuously between them.
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