Match each chemical bond to its correct description. a.) ionic bond b.) covalent bond c.) metallic bond 1.) sharing of electrons 2.) freely moving electrons 3.) transfer of electrons

A) ionic bonds are formed by transfer of electrons.

B) Covalent bonds are formed by sharing of electrons.

C) Metallic bonds are formed due to freely moving electrons.

Explanation:

A) ionic bonds are formed by transfer of electrons. In ionic bond a metal donates electrons and a non metal takes electrons. Thus complete transfer of electrons occur.

B) Covalent bonds are formed by sharing of electrons. In covalent bonds two atoms share electrons of their valence shell.

C) Metallic bonds are formed due to freely moving electrons. The valence electrons in metals, are free and thus are responsible for the metallic bond.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)