At room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas, whereas ionic compounds exist only as solids, Ionic compounds exist in stable crystalline structures. Therefore, they have higher melting and boiling points compared to covalent compounds.
Answer:
Wait like actually? Do we need to get to Mars?
Uranus is the seventh planet from the sun and the first to be discovered by scientists. Uranus is blue-green in color, the result of methane in its mostly hydrogen-helium atmosphere.
Answer:
through wires
Explanation:
Electrical energy passes through conductors but may also travel through space but select wires as it is a more common answer.
Answer:the possession of feathers
Explanation:birds are warm blooded animals , that possess feathers.these feathers cover their bodies and used for flight and warmth.their forelimbs are modified into wings,which fold into a Z shape at rest.feathers grow from the skin follicles and are replaced by scales on their legs.they possess oil gland to dress the feathers.
Other features of birds include
1) beaks with no teeth
2) fully ossified bones with air cavities
3)females with left ovary and oviducts only
