Calculate the concentration of H3O⁺ in a solution that contains 5.5 × 10^-5 M OH⁻ at 25°C. Identify the solution as acidic, basic, or neutral.

a- 1.8 × 10^-10 M, acidic
b- 1.8 × 10^-10 M, basic
c- 9.2 × 10^-1 M, basic
d- 9.2 × 10^-1 M, acidic
e- 5.5 × 10^-10 M, neutral

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

How is the shape of the poem “peer” connected to its meaning?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)