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MoleculeSketch is a simple and easy to use drawing App for chemical formulas and reactions.It has following features:+ add atoms and bonds nicely by position locking (can be disabled)+ choose different double bond styles+ add stereo bonds+ show missing hydrogen atoms depending on free valences+ show non bonding electron pairs on heteroatoms+ change background color of drawing area+ copy/paste/cut molecules and drawings+ past drawings into other applications as pdf drawing+ use trackpad gestures for zooming and rotation+ access drawing attributes from popover panels+ add reaction arrows and text fields+ calculate average mass and formula of molecules
