Which of the substances below would produce the hardest crystals? A)SiC B)Xe C)Cu D)KNO₃ E)H₂O

Question

Quizplus · Accepted Answer

SiC (silicon carbide) is a ceramic material that has extremely high hardness and is used in cutting tools, abrasives, and armor plates. It has a very strong covalent bond between silicon and carbon atoms, which contributes to its hardness. Xe (xenon) and Cu (copper) are metals that do not form strong covalent bonds, and thus do not have the same level of hardness as SiC. KNO₃ and H₂O are chemical formulas that do not refer to any known substances.

Which of the Substances Below Would Produce the Hardest Crystals