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Compare and contrast the information given in the Lewis structure, the
space‑filling model, the ball‑and‑stick model, and the geometric sketch of an
ammonia molecule, NH3
Give an everyday example of reporting a measurement and describe the way a scientist would report this value, including a description of the precision, accuracy, and use of significant figures.
The images below show a typical thermometer at two different temperatures. The units are degrees Celsius.
The images show one thermometer at a temp of 26 ½ degrees and the other one at 30 degrees
b. If you were told that the lines on the thermometer are drawn accurately to ±1 °C, how would you report these two temperatures?
If you are given the following values that come directly or indirectly from measurements, what will you assume is the range of possible values that they represent?
A. 3 μm (the diameter of a hair)
B. 2.0 × 10-6 nm (the diameter of a proton)
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