In paragraph form, explain how the particles are acting in each phase of matter. Explain the 6 different phase changes and how energy is related to each one.

What type of reaction is zn + cucl2 → cu + zncl2?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?