An object which allows light to show through it unaltered is called?

What type of electromagnetic radiation has a shorter wavelength than blue light

Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart