A student measures the length of a sheet of paper and finds that it is 27 cm long. The label on the package indicates that the paper length is 28 cm. Calculate the percentage error in the measurement.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

‘which reaction would most likely require the use of an inert electrode?