Chemical compunds

Compounds are formed when an element of an Atom join with another element of an atom to form a substance. There are 2 types of Chemical bonds : Ionic Bonds and Covalent Bonds and they are both very different, Ionic bonds connects with Metals and Non-Metals and the reason why they connect is because they end up getting electrical charge. They form when two elements with the opposite charge join together. Covalent bonds form when electrons are lost or gained to achieve the octet resulting in the formation of Ions  

here is a picture of vinegar, vinegar is covalent bond and that's because vinegar has magnesium, phosphorous, chlorine, sodium, sulfur, potassium, calcium, copper, iron, silicon and fluorine. The formula for vinegar is C2H4O2.

This a picture of Backing soda is made out of sodium which makes it an ionic compound . The formula for Baking Soda is NaHCO3

This is sugar, sugar is a covalent bond since C12H22O11