What accounts for the attractions in a chemical bond?

Which best explains why an iceberg floats?

Which description best characterizes the motion of particles in a solid?

Achemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. the chemical reaction that occurred is shown. na + cl2 → nacl if the percentage yield of the reaction is 86%, what is the actual yield? show your work, including the use of stoichiometric calculations and conversion factors.