What is the term for an atom or group of atoms that characterizes ...

[mcmcdaniel]

What is the term for an atom or group of atoms that characterizes a class of compounds?
 
  A) alkyl group
  B) carbonyl group
  C) carboxyl group
  D) functional group
  E) none of the above

Question 2

How many moles of water react with 5.00 mol of lithium metal?
 
  __Li(s) + __H2O(l)  __LiOH(aq) + __H2(g)
  A) 2.50 mol
  B) 5.00 mol
  C) 10.0 mol
  D) 20.0 mol
  E) none of the above

Question 3

The ligand with the name aqua when used in complexes with transition metals has the formula ________.
 
  A) H2O
  B) H2O2
  C) HO-
  D) N3-
  E) H3O+

Question 4

Which of the following is a rare earth element?
 
  A) Al
  B) Be
  C) Li
  D) Sc
  E) none of the above

[mirabriestensky]

Answer to Question 1

D

Answer to Question 2

B

Answer to Question 3

A

Answer to Question 4

D

[mcmcdaniel]

Wow, this really help

[aliotak]

TYSM