Which combination would act as an acidic buffer? A.
HCl and NaOH
B.
CH3COOH and NaCH3COO
C.
HNO2 and HF
D.
NH3 and NH4Cl
E.
HCl and KCl

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Draw two cyclic constitutional isomers of cis-1

What is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j