Question

unit 4 molecular geometry practice test
three rules of bonding: it is...
nonpolar if
polar covalent if
ionic if
covalent name rules
p₄cl₅
prefixes
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
vsepr
name of shape
example
organic compounds?
a. carbon can form up to 4 bonds at a time
b. carbon forms more stable bonds than other non - metal elements
c. carbon forms less reactive compounds than other non - metal elements
d. carbon usually breaks the octet rule in organic compounds

1. identify the following compounds as covalent or ionic.

a) cacl₂ ______
b) so₃ ______
c) rb₂s ______
d) mno₄ ______
e) co ______

1. what is the formula for dinitrogen trioxide?
2. write the formula for carbon disulfide.
3. what is the full name of n₂o₄?
4. name the molecule so₃
5. a covalent bond in which 2 atoms share 3 pairs of electrons is called a bond.
6. a covalent bond in which 2 atoms share 2 pairs of electrons is called a bond.
7. a covalent bond in which 2 atoms share 1 pair of electrons is called a bond.

prefix(______
______
bond

Explanation:

Step1: Analyze the compound type

$\ce{CaCl_{2}}$ consists of a metal (calcium, $\ce{Ca}$) and a non - metal (chlorine, $\ce{Cl}$). Ionic compounds are formed between metals and non - metals through the transfer of electrons.

Step2: Confirm the classification

Since calcium is a metal and chlorine is a non - metal, and the bonding in $\ce{CaCl_{2}}$ involves the transfer of electrons from calcium to chlorine (calcium loses 2 electrons to form $\ce{Ca^{2+}}$ and each chlorine gains 1 electron to form $\ce{Cl^{-}}$), $\ce{CaCl_{2}}$ is an ionic compound.

Answer:

$\ce{CaCl_{2}}$ is an ionic compound.