D. quantitative data can be recorded.
Answer: C2HNO3
Explanation: C = 27.59/12.011 = 2.297
H = 1.15/1.008 = 1.1409
N = 16.09/14.007 = 1.1487
O = 55.17/15.999 = 3.4483
Divide by smallest result:
C = 2
H=1
N=1
O = 3
Empirical formula = C2HNO3
Protons, the number of protons cannot change or the element will change as well.
Ionic compounds. because when in solid form they are held firmly in place therefore they cannot move to conduct electric current.