Examlex
In the reaction between NO2 and H2O that produces HNO3,the Lewis acid is ________ and the Lewis base is ________.
First-Angle Projection
A method of creating engineering drawings where the object is imagined to be in the first quadrant, with planes between the viewer and the object.
Second-Angle Projection
A drafting technique where the object is viewed from directly above, with views rotated 90 degrees around the object's axis, commonly used in European countries.
Third-Angle Projection
A method of orthographic projection used primarily in the United States, where the object is imagined to be located in the third quadrant.
Decimal-Inch
A unit of measurement used in the United States, where lengths are represented in decimal as opposed to fractions, for precise machined parts or engineering drawings.
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