Which type of bonding involves the sharing of electrons, in which the electrons are confined close to the more electronegative element in the bond? Question 1 options:  
Covalent bonding  
Metallic bonding  
Ionic bonding
Polar covalent bonding

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Fossil fuels are organic compounds that are made from