Melting points and boiling points of ionic compounds are generally ____ than those of covalent compounds.

Ionic compounds in general possess bothA High melting point and non-directional bonds B High melting point and low boiling points C Directional bonds and low boiling point  D High solubility in polar and non-polar solvent

What is true about the melting points of ionic and molecular compounds? Group of answer choicesThe melting points of ionic compounds are higher than the melting points of molecular compoundsThe melting points of ionic compounds are lower than the melting points of molecular compoundsThe melting points of ionic and molecular compounds increase with the number of atoms present in the compoundThe melting points of ionic and molecular compounds are similar

Which of the following are properties of ionic compounds?Low melting and boiling points, do not dissolve in waterHigh melting and boiling points, dissolve in waterLow melting and boiling points, dissolve in waterHigh melting and boiling points, do not dissolve in water2Ionic compounds can:Conduct electricity when solid but not liquidThey cannot conduct electricity when liquid or solidConduct electricity when both solid and liquidConduct electricity when liquid but not solid3The atoms in simple molecular structures are held together by which type of bonds?CovalentIonicIonic and covalentMetallic4Simple molecular structures have:Weak molecular bonds and strong intermolecular bondsStrong molecular bonds and weak intermolecular bondsStrong molecular bonds and strong intermolecular bondsWeak molecular bonds and weak intermolecular bonds5Giant structures can be formed from millions of atoms held together by:Metallic bondsCovalent bondsIonic bondsIonic, covalent or metallic bonds6Graphite is the only giant covalent structure that:Dissolves in waterHas a high melting pointIs a form of carbonConducts electricity

Which of the following is not a property of ionic compounds?Usually a gas at room temperature.Good electrical conductivity when molten.Form crystalline structures.Very high boiling points.

Which is a not a  property of covalent compounds in their solid state?   Group of answer choicesweak attractive forces between ionshigh melting pointpoor conductors of electricitylow boiling point