Nal + Cl2 - NaCl + 12 When the equation is balanced, which coefficient should be
placed before NaCl ?

a. 3
b. 4
c. 5
d. 2

After cloud droplets form, what must happen to them for precipitation to occur?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate