For example, tungsten has the highest melting point of any metal at 3,422°C. Ceramics also have high melting points due to their ionic or covalent bonds. These bonds are extremely strong and require a large amount of energy to break them apart. Ceramics such as alumina, silicon carbide, ...
1. Which substance would have the highest melting point, based on electronegativity: H2S, H2O, H2Se, H2Te, H2O? 2. Hydrogen bonds can be found between molecules of which of the following substances: H Use electronegativity values to classify the bond(s) in e...
Why does carbon make up all organic molecules? Why not silicon, which is also in the 4th group of the periodic table? Differentiate between diamond and graphite. Ionic compounds are made up of electrically charged particles, Why does not such a compound have an overall electric charge?
Consider an AI-designed bus route. Once upon a time, the engineers and programmers were all white males in Silicon Valley who drove luxury cars and knew nothing about the culture, needs, or infrastructure of a city’s bus services. They would have made assumptions upfront that a young Black...
Silsesquioxanes and their derivatives, which are hybrid compounds of inorganic–organic structure (inorganic core and organic functional groups connected with silicon atoms at the corners of the core) [9] have been introduced into the polymer matrix by several means. The reported methods include ...
Car companies aren’t supposed to start in Silicon Valley, and Silicon Valley startups aren’t supposed to make cars. But the electric car industry is not your grandfather’s car industry. And in 2003, it wasn’t anyone’s car industry. After the brief bubble of new electric cars in Ca...
Which of these has the highest vapor pressure in a sealed container at a temperature cool enough to produce a liquid? a. CH3CH2OH b. NCI3 c. H2 d. N2 e. CH3OH Computer chips are made primarily from silicon, a semiconductor. How does the conductivity of Si change when the...