Multiple Choice
Estimate the density of magnesium oxide from its crystal structure .
The radii of Mg2+ and O2- are 72 and 140 pm, Respectively.
A) 3.51 g.cm-3
B) 14.9 g.cm-3
C) 21.1 g.cm-3
D) 1.76 g.cm-3
E) 0.878 g.cm-3
Correct Answer:
Verified
Correct Answer:
Verified
Q179: Calculate the mass of sulfur hexafluoride
Q180: The density of citronellal, a mosquito
Q181: Oxygen can be produced in the
Q182: A metal sample can be considered a
Q183: From what are ortho-silicates built?<br>A) SiO<sub>2</sub><sup>2-</sup><br>B) SiO<sub>2</sub><sup>4-</sup><br>C)
Q185: How is granite best described?<br>A) A common
Q186: Where is the tensile strength of carbon
Q187: How many liters of nitrogen gas
Q188: When the cations and anions of an
Q189: In solution based methods of nano-material fabrication,