Multiple Choice
What elements are present, and how many atoms of each are in the compound MgCl2?
A) 1 atom of magnesium and 2 atoms of cobalt
B) 1 atom of magnesium and 2 atoms of chlorine
C) 2 atoms of magnesium and 1 atom of cobalt
D) 2 atoms of magnesium and 1 atom of chlorine
Correct Answer:

Verified
Correct Answer:
Verified
Q18: What type of chemical was found in
Q19: What is the current element name for
Q20: What are two of the properties of
Q21: The atomic symbol that corresponds to the
Q22: When two or more substances are mixed
Q24: The atomic symbols that correspond to bromine,
Q25: Why was chromatography originally developed?<br>A)To separate different
Q26: K is the symbol for which element?<br>A)Potassium<br>B)Polonium<br>C)Phosphorus<br>D)Sodium
Q27: The atomic symbol that corresponds to the
Q28: What five elements are in the halogens