Complete the following statements to prove that ∠IKL and ∠JLD are supplementary angles.

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

What is the surface area of a cube with the volume of 729 ft?