Problem:OPTIONS:
- the coefficient
- the periodic table
- the vector
- the mole

Q: What is the most useful quantity for counting particles? A:
****
A: the mole

Problem:OPTIONS:
- lipids
- malts
- enzymes
- alkenes

Q: The hydration of what is what makes many alcohols? A:
****
A: alkenes

Problem:OPTIONS:
- ten
- two
- four
- six

Q: Carbon atoms have six neutrons as well as how many protons? A:
****
A: six

Problem:OPTIONS:
- rust
- copper alloy
- iron oxide
- copper oxide

Q: What substance is created when a copper turns from reddish brown to greenish brown? A:
****
A:
copper oxide