B、 polar covalent. C、 network covalent. D、 ionic. E、 metallic. 查看答案 单选题 Which of the following bonds attracts atoms of hydrogen to each other in a H2 molecule? A、 hydrogen bonding. B、 ionic bonding. C、 metallic bonding. D、 non-polar covalent bonding. E、 polar covalen...
Silicon carbide, SiC, is a covalent network solid with a structure similar to that of diamond. Sketch a small portion of the SiC structure. Verified Solution This video solution was recommended by our tutors as helpful for the problem above Video duration: 3m ...
View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Board, MP Board, Telangana Board etc ...
Network crystalline solids consist of atoms that are held together by covalent bonds. They are incredibly hard, have high melting points and are poor conductors of heat and electricity. Some of the most well-known crystalline solids—specifically quartz (SiO2) anddiamonds(C)—fall under the netwo...
TEOS is mainly used as a crosslinking agent in silicone polymers and as a precursor to silicon dioxide (SiO2) in the semiconductor industry and is also used as the silica source for the synthesis of some zeolites. When properly hydrolyzed, ethyl silicate produces very fine particles of silica,...
The mechanical instability is facilitated by a unique in-plane or out-of-plane weakening of the three-dimensional covalent bond network of boron along different shear deformation paths. These results shed a novel view on the origin of the stability and strength of orthorhombic TmB4, highlighting ...
covalent network solid Ionic solids: a. are soft and have low melting points. b. melt to form liquids that conduct electricity. c. are malleable. d. conduct electricity. How would you classify a hard solid that melts at 3410 degrees Celsius if both the solid and l...
Which of the following is associated with SiO2(s)? a. ionic bonds b. network covalent bonds c. dipole-dipole attractions d. hydrogen bonds e. metallic bonds f. covalent bonds g. dispersion forces In which of the following c...
Functional Depiction regarding Alr0765, Any Hypothetical Protein Posted onDecember 25, 2024 Reply The enhanced number of endemic mycoses coupled with the growing immunocompromised diligent population mandates carried on research of enhanced diagnostic and therapeutic choices. Improvements in these places have...
79Silicon dioxide particles are usually amorphous solid spheres. The majority of particles in food-grade SiO2ingredients (E551) are usually in the 100 to 1000 nm range, but there may also be a significant population of smaller particles. It has been estimated that the intake of SiO2is ...