Which compound contains both ionic and covalent bonds? a.)caco3 b.)pcl3 c.)mgf2 d.)ch2o

CaCo3, because CO3 is carbonate, which is three oxygens covalently bonded to the carbon. It has a charge of 2- becuase carbon has 4 electrons and the 3 oxygens bring 6. 

A. CaCo3 should be correct

Calcium carbonate has both ionic and covalent bonds. It's a compound of carbon and oxygen, which are both non-metals, so are covalently bonded.

Answer: fn = wcos50 = 38.89(9.81)(cos50) = 245.23 n