13-Letter Words Matching H_________C__

There are 15 13-letter words that match H_________C__. 4 are common words, such as HAPPENSTANCES and HEMATOLOGICAL. A rarer one is HYPERSURFACES. In this set, A is the most frequent open letter (14 words). 2 words contain a doubled letter.

Full list 15

happenstanceshematologicalhemisphericalhypercriticalhermeneuticalholographicalhydrometricalhydrostaticalhyperphysicalhappenchanceshistochemicalhydrothoraceshypermetricalhyperproducerhypersurfaces

About this list

Words
15 (4 common words)
Common example
happenstances
Rare example
hypersurfaces
Doubled letters
2
Ending in S
4
Most frequent letter
A (14)

Questions

How many 13-letter words matching h_________c__ are there?

15. 4 of them are common words.

What is a common example?

HAPPENSTANCES is among the common words in this set.