Which chemical process is associated with the lattice energy for sodium chloride?
nacl(g) → na+(g) + cl-(g)
nacl(s) + h2o(l) → na+(aq) + cl-(aq)
na(s) + 1/2 cl2(g) → nacl(s)
nacl(s) → na+(g) + cl-(g)

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane

To calculate the molarity of a solution, you need to know the moles of solute and the

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost