![organic chemistry - Why are the hydrogen-carbon bonds bent in a graphical depiction of an alkene, but are straight horizontally and vertically in an alkane? - Chemistry Stack Exchange organic chemistry - Why are the hydrogen-carbon bonds bent in a graphical depiction of an alkene, but are straight horizontally and vertically in an alkane? - Chemistry Stack Exchange](https://i.stack.imgur.com/vyqTQ.png)
organic chemistry - Why are the hydrogen-carbon bonds bent in a graphical depiction of an alkene, but are straight horizontally and vertically in an alkane? - Chemistry Stack Exchange
![electronic configuration - What happens to the 2s orbital in carbon-hydrogen bonds? - Chemistry Stack Exchange electronic configuration - What happens to the 2s orbital in carbon-hydrogen bonds? - Chemistry Stack Exchange](https://i.stack.imgur.com/pydrH.png)
electronic configuration - What happens to the 2s orbital in carbon-hydrogen bonds? - Chemistry Stack Exchange
![A new approach to separate hydrogen from carbon dioxide using graphdiyne-like membrane | Scientific Reports A new approach to separate hydrogen from carbon dioxide using graphdiyne-like membrane | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-020-69933-9/MediaObjects/41598_2020_69933_Fig1_HTML.png)