Go to http://chemwiki. ucdavis. edu/Theoretical_Chemistry/Chemical_ Bonding/General_Principles/Metallic _Bonding and use the information there to answer the following questions about metallic bonding. 1. Use the metallic bonding model to explain why metals are malleable and ductile. (Rephrase in your own words—don’t just copy from the website)

2. Why are metals shiny?

3. Three things the strength of a metallic bond depends on:

describe matter a earth

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.