Classify the following solids as ionc. Netallic molecular, netwirk (covalent)or amorphous.
a - Sic
B-plastic
C-graphite
a-Sic - Network (covalent)solid
B-plastic - Amorphous solid
c-graphite -Network (covalent )solid
1. How do crystals and amorphous solids differ? a. Crystals have particles that are separated by b. Crystals have broad melting point ranges and shattered and amorphous solids do not. 6. Which of the following statements is true? a. Metallic solids have a dull appearance. c. Covalent solids have low melting points. amorphous solids do not. b. Molecular solids have a low density d. Ionic solids are soft. amorphous solids do not c. Crystals produce regular shaped fragments when 7....
QUESTION 2 Amorphous solids have a well defined crystal lattice. True False QUESTION 3 Consider these two classes of solids: covalent-network solids and molecular solids. Which answer below best explains why these two types of solids differ so greatly in terms of their relative hardness and melting points? O A. The atoms in covalent-network solids are more polarizable than those in molecular solids. B. The molecules in molecular solids have stronger covalent bonding than covalent-network solids do. OC. The molecules...
Classify each of these solids. lonic Molecular Metallic Covalent C(diamond) AIC Li CCl4 also known as covalent-network solids or macromolecular solids.
Identify the incorrect answer below. A. I2 is a molecular solid. B. C10H22 is a molecular solid. C. He is an atomic solid. D. Diamonds (C) are metallic solids. E. Graphite (C) is a network covalent solid.
1. Based on what you know about the characteristics of solids, classify the following solids as molecular, network, ionic, or metallic. a. Cu(s) b. H2O(s) c. Quartz (SiO2) d. Graphite (Cis) e. Sugar (C12H22O11)
i
need help please : Types of compounds
Argumentation and Documentation Classify each substance as metallic, ionic, molecular or covalent network based on your experimental results and further observations Part I. Testing Conductivity of Substances at Room Temperature Two substances were electrically conducting solids. The only classifications for substances that conduct electricity as solids are metallic or covalent network solids. Use the malleability property of metals to determine the classification of the two substances. Part II. Testing Conductivity of Solutions...
Polymers do not show a clear transition between solid and liquid, why is this? Select one: a. Polymers do show a clear transition between solids and liquids O b. The Carbon chains remain tangled when melted O c. The covalent bonds in polymers are not broken when heated O d. The VDW bonds are not all broken at once which gradually weakens the polymer Oe. Polymers are already partly amorphous solids which gradually become amorphous liquids
For which of the following pure solids is it necessary to break covalent bonds to make a liquid or gas: ( Note the answer should be E , but i have no idea why ) . thank you a.C(graphite) only b.CO2(s) only c.CO2(s) and C60(s) d.C(graphite), C60(s) and C(diamond) e.C(graphite) and C(diamond)
6. Classify each of the following solids according to the forces of attraction that exist between the structural units: a zinc b. sodium iodide, Nal csilicon carbide, SIC d. methane, CH
Q6. HOCH2CH2OH(s) is classified as a/an: A. metallic crystal. B. covalent solid. C. molecular crystal. D. amorphous solid. Q7. Magnesium oxide, MgO, melts at 2,800°C and is very hard. The liquid conducts electricity very well. What kind of crystal is this? A. Ionic Crystal B. Covalent Crystal C. Metallic Crystal D. Molecular Crystal Q8. Which one of the following substances will have both dispersion forces and dipole-dipole forces? A. HC B . Br2 D. H2 E. CO2 Q9. W(s) is classified as a/an A. metallic crystal. B. covalent...