Chemistry Question!!! 2

Which compound has both ionic and covalent bonding?

A. CaCO2
B. CH2Cl2
C. CH3OH
D. C6H12O6


Plz show HOW to get the answer thnx

It's A. Ca-C=O (also with a C-O with a negative charge) Calcium carbon bond is ionic, as calcium is a group 1 element and therefore it will only bond ionically. C=O is covalent, draw a dot and cross to show this.

All the others are just covalent. calcium bonds ionically all group 1 and 2 will, as they don't have enough electron to share.

remember you need a full electron outer shell

im not going to do this but i can guide u in understanding
Covalent bonding and ionic bonding are quite opposite of one another
If electronegativy differs more than 1.7 than its ionic
if its between 0.5 to 1.7 its polor covalent
the person above is correct
since ca - C = 1.2 Ca- O = 2.32 meets what u are looking for above

well i am a commerce student so i don't know! hehe!