True; synchronous means existing or occurring at the same time (I really don't know if that's a question but oh well)
The command is Merge & Center
This command could be easily found in the toolbar of your excel.
If you execute this command in two different cells, those cells will be merged into one larger cell and the content in that cells will be placed exactly in the middle of the combined cell (measures according to combined cells' length)
The answer will be google docs since it depends on a web and its an application. hope it helps
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