Multiple Choice
A 200.0 g sample of pure MgCl2 contains:
A) 95.211 formula units MgCl2
B) 2.101 formula units MgCl2
C) 1.265 × 1024 formula units MgCl2
D) 1.204 × 1026 formula units MgCl2
E) 5.734 × 1025 formula units MgCl2
Correct Answer:

Verified
Correct Answer:
Verified
Q78: To produce ferrocene one requires 2.33 g
Q79: What mass of ammonia,N<sub> </sub>H<sub>3</sub>,contains the same
Q80: Which one of the following compounds contains
Q81: What is the mass percent of H<sub>2</sub>O
Q82: What is the formula of sodium hypochlorite?<br>A)NaCl<br>B)NaClO<br>C)NaClO<sub>2</sub><br>D)NaClO<sub>3</sub><br>E)NaClO<sub>4</sub>
Q84: Which of the compounds,C<sub>4</sub>H<sub>10</sub>,BaCl<sub>2</sub>,Ni(NO<sub>3</sub>)<sub>2</sub>,SF<sub>6,</sub> are expected to
Q85: Only metals in binary compounds use prefixes
Q86: A molecule is a group of bonded
Q87: The chemical formula for the selenite ion
Q88: The chemical formula for sulfurous acid is:<br>A)H<sub>2</sub>S<br>B)H<sub>2</sub>SO<sub>3</sub><br>C)HSO<sub>4</sub><br>D)H<sub>2</sub>S<sub>2</sub>O<sub>7</sub>