From your instructor, obtain a handout showing one possible arrangement of the element cards. identify each of the elements on the handout with its atomic number and

chemical symbol.

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *