Which is untrue about covalent compounds? exist as gases, liquids, or solids at room temperature are extremely malleable, soft, pliable when in solid form have high melting points are not good conductors of electricity

The untrue statement is that they high melting points.  

The covalent compounds are the compounds exhibiting strong intra-molecular bonds. This is due to the tightness of the atoms within the covalent molecules. The force of attraction between the individual molecules in a covalent compound seems to be weak. The covalent compounds exhibit weak intermolecular forces that hold the atoms together due to this they have a low melting point.  

hloride, what is the mass of calcium in

explanation:

pie chart because it is in percents ( % )