Understanding Alkanes

What are alkanes primarily composed of?

• Oxygen and nitrogen

• Hydrogen and carbon

• Carbon and oxygen

• Nitrogen and hydrogen

How many hydrogen atoms are bonded to a single carbon atom in methane?

• Four

• Three

• Two

• Five

What is the chemical formula for ethane?

• C2H6

• C3H8

• C2H4

• C4H10

How many carbon atoms are present in propane?

• One

• Four

• Two

• Three

Using the alkane formula, what is the chemical formula for butane?

• C4H10

• C6H14

• C3H8

• C5H12

What shape is associated with pentane in the video?

• Square

• Triangle

• Pentagon

• Hexagon

What is the general formula for alkanes?

• CnH2n+1

• CnH2n-2

• CnH2n+2

• CnH2n

What happens to the boiling points of alkanes as the molecules get longer?

• They fluctuate

• They remain the same

• They decrease

• They increase

Why are alkanes considered saturated?

• They have double bonds

• They have no hydrogen atoms

• They have the maximum number of hydrogen atoms

• They have triple bonds

What is the chemical formula for decane?

• C8H18

• C9H20

• C10H22

• C11H24