1) One particular snake, say a rattle snake or a cobra, doesn't always look the same. Describe three different ways a rattle snake or a cobra, or another snake of your choosing might appear depending on where it is and what it's doing. What makes the appearance of the snake different in each situation? How you would know in spite of the differences that it is a snake of a particular type? 2) Draw 3-methylhexane, given below in a line structure, three more ways (also as line structures) that are different. You can rotate it or flip it in various ways, but can also rotate various carbon-carbon bonds to make different conformations. Then explain why they are all 3-methylhexane, even though they look different. (See the background for Part 1 of this lab for help, if needed.) 3) Draw 3-methylhexane (given below) as a condensed structure and as an expanded structure. Use one structure to determine its molecular formula (CnHm), and then check your results with the other two structures. On the line structure label one example each of a primary carbon ( 1, has 1 carbon attached), a secondary carbon ( 2, 2 carbons attached), and a tertiary carbon (3,3 carbons attached). This compound has no quaternary carbons. (40,4 carbons attached). (See the background for Part 1 of this lab for help, if needed.)