## Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning

# Chapter 2 Atoms, Molecules, and Ions - Study Questions - Page 95g: 116

#### Answer

a) Barium fluoride, Silicon tetrachloride, Nickel (II) bromide b) $BaF_2$, $NiBr_2$ are ionic. $SiCl_4$ is molecular. c) 1.0 mol of $NiBr_2$

#### Work Step by Step

a,b) Ionic: $Ba^{2+}$ - Barium, $F^-$ - Fluoride: Barium fluoride, Molecular: Silicon tetrachloride, Ionic: $Ni^{2+}$ - Nickel(II), $Br^{-}$ Bromide: Nickel (II) bromide c) Molar masses (g/mol): $BaF_2: 175.32,\ SiCl_4:169.90,\ NiBr_2:218.50$. $NiBr_2$ has the largest molar mass and has more amount of moles in the sample, so it's the one with the largest mass.

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