U Question 2
In a neutral atom, what does the atomic number indicate?
A. total protons and total electrons
B. the total number of protons only
C. protons and neutrons combined
D. the total number of all subatomic particles

Noble gases are the most reactive elements on the periodic table. a. true b. false

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?