Which of the following statements describes straight-chain ...

[Yi-Chen]

Which of the following statements describes straight-chain hydrocarbon?
 
  A) a hydrocarbon where every carbon has only a single bond to no more than two other carbons
  B) a hydrocarbon where every carbon is bound with a straight line to every other carbon
  C) a carbon atom that is bound straight to four hydrogens
  D) a hydrocarbon that has a linear rod shaped conformation
  E) none of the above

Question 2

Why does a lake freeze from the top down?
 
  A) As cold water cools towards freezing it gets less dense.
  B) The cold air is at the top of the lake.
  C) Cold water sinks, warm water rises.
  D) Warm water sinks, cold water rises.
  E) none of the above

[harveenkau8139]

Answer to Question 1

A

Answer to Question 2

A

[Yi-Chen]

Gracias!

[sailorcrescent]

TYSM