Analyze how you would know that a pure substance is an ionic and not a covalent compound.Compare and contrast how an empirical formula is like and unlike a molecular formula.What are the significant s

Analyze how you would know that a pure substance is an ionic and not a covalent compound.
Compare and contrast how an empirical formula is like and unlike a molecular formula.
What are the significant similarities and differences between the terrestrial and giant planets? Speculate why these similarities and differences exist.