Which pair of compounds has the same empirical formula?
a) c2h6 and ch
b) ch3 and c2h6
c) c3h8 and c3h
d) c2h2 and c2h

Alculate the concentration of h3o⁺in a solution that contains 5.5 × 10-5m oh⁻at 25°c. identify the solution as acidic, basic, or neutral.a) 1.8 × 10-10m, basicb) 1.8 × 10-10m, acidicc) 5.5 × 10-10m, neutrald) 9.2 × 10-1m, acidice) 9.2 × 10-1m, basic

One does not belong why? ice, gold ,wood ,diamond and table salt

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these