Phosphorus (P) has an isotope that has an atomic number of 15 and an atomic mass of 32. Answer the following questions about this isotope. (2 points)

i. How would it be identified in isotope notation? (1 point)

ii. How many neutrons does this isotope have? (1 point)

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2

If a solution had a ph of 7 what is the solution