Does topaz chip or scratch easily?

Bonds are polar when the difference in the electronegative of the atoms is than 1.7 . With one atom drawing the electrons toward itself? What is likely to be the single most important structure in a cell and why? Is the cytoplasm composed of the cytoskeleton? What can inorganic nutrients do in your body that organic can't? Can you use water softener salt for a pool salt system? How many gils does a great white shark have? Convert 44 mills per kwh to cents? Are you a consumer if you feed on secondary consumers? Why is heat produced in a conductor due to the flow of electric current? Are natural disasters a big problem in the world? What are 2 ways earthworms help plants grow? What holds the atoms together in a chemical bond? What created the Tibetan Plateau? What social factors affect your family life? What are the differences between a neutron star and a white dwarf? A double covalent chemical bond represents the sharing of how many electdrons? When was amoeba discovered and by who? What is sedimentary rock formed from? How do you divide 120 pounds 12 ounces by 7? How important is reproductivein continuing the cycle of life on earth?