Question 1
Below are given the Lewis structures of five molecules. Which one displays the MOST hydrogen bonding?
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![](data:image/png;base64, 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)
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Question 2
Cesium has a radius of 272 pm and crystallizes in a body-centred cubic structure. What is the edge length of the unit cell?
◦ 314 pm
◦ 385 pm
◦ 544 pm
◦ 628 pm