1. For each of the followina sets of molecules, rank them in order of increasing rate of SN2 reaction (1 = slowest; 3 = fastest). (:- а. NH NH Me Me NH b. Me Me Me Me SNa Me Me ONa Me Me Me C. Me Me „Me Me Me Me CI CI d. Me Me Me Me Me Br Me Me е. F3 Br NH2 O=S=0

Consider a bar of that has a mass of 2.22 x10^5. Knowing that the density of gold is 19.3 g/cm^3, what is the volume of this bar of gold

Which one of the following statements describes the gaseous state of matter? O a. The atoms or molecules do not have enough energy to move about and are in constant contact with each other. Neither the volume nor the shape of the matter can change. O b. The atoms or molecules do not have enough energy to move about but only contact each other when they randomly collide. The volume can change but the shape cannot. O c. The atoms or molecules are constantly in contact with each other and have enough energy to move about. The volume remains constant but the shape can change. Od. The atoms or molecules have enough energy to be constantly in motion but they are in constant contact with each other. The volume can change but the shape cannot. O e. The atoms or molecules have enough energy to be in constant motion and only contact each other when they randomly collide. Both the volume and shape can change.

2319cm to m

The highest temperature ever recorded in Phoenix, AZ was 122F. Express this temperature in C.

b. 203.77 miles/sec is converted to cm/nsec

A sample of neon occupies 250 mL at 22 degrees C. what volume would it occupy at 45 degrees C?