Question

name:_____ period___ date_____

	compound formula	element name & quantity	element name & quantity	element name & quantity	type of bond
ex.	h₂o	hydrooogen-2	oxygen-1
1	n₂o₅				covalent
2	nacl
3	cuzn
4	pcl₃
5	kbr
6	fecrni
7	c₆h₁₂o₆
8	alcumg
9	h₂o₂
10	cacl₂
11	nh₃
12	na₂so₄
13	caco₃
14	ch₄
15	agcu
16	alnico
17	so₂
18	nh₄cl
19	sf₆
20	kno₃

true/false statements

1. ionic bonds form when electrons transfer completely from one atom to another, not shared.
2. covalent bonds usually occur between nonmetal atoms that share electrons to fill outer shells.
3. metallic bonds involve delocalized electrons moving freely, not fixed between just two atoms.

Explanation:

Step1: Break down each compound

Extract elements and their counts from formulas, then classify bonds based on element types (metal-nonmetal = ionic; nonmetal-nonmetal = covalent; metal-metal = metallic; ionic + covalent = ionic with polyatomic ion).

Step2: Answer true/false questions

Apply definitions of ionic, covalent, metallic bonds.

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Compound Table Completion:

#	Compound Formula	Element Name & Quantity	Element Name & Quantity	Element Name & Quantity	Type of Bond
2	$\text{NaCl}$	Sodium-1	Chlorine-1	-	Ionic
3	$\text{CuZn}$	Copper-1	Zinc-1	-	Metallic
4	$\text{PCl}_3$	Phosphorus-1	Chlorine-3	-	Covalent
5	$\text{KBr}$	Potassium-1	Bromine-1	-	Ionic
6	$\text{FeCrNi}$	Iron-1	Chromium-1	Nickel-1	Metallic
7	$\text{C}_6\text{H}_{12}\text{O}_6$	Carbon-6	Hydrogen-12	Oxygen-6	Covalent
8	$\text{AlCuMg}$	Aluminum-1	Copper-1	Magnesium-1	Metallic
9	$\text{H}_2\text{O}_2$	Hydrogen-2	Oxygen-2	-	Covalent
10	$\text{CaCl}_2$	Calcium-1	Chlorine-2	-	Ionic
11	$\text{NH}_3$	Nitrogen-1	Hydrogen-3	-	Covalent
12	$\text{Na}_2\text{SO}_4$	Sodium-2	Sulfur-1	Oxygen-4	Ionic (with covalent polyatomic ion)
13	$\text{CaCO}_3$	Calcium-1	Carbon-1	Oxygen-3	Ionic (with covalent polyatomic ion)
14	$\text{CH}_4$	Carbon-1	Hydrogen-4	-	Covalent
15	$\text{AgCu}$	Silver-1	Copper-1	-	Metallic
16	$\text{AlNiCo}$	Aluminum-1	Nickel-1	Cobalt-1	Metallic
17	$\text{SO}_2$	Sulfur-1	Oxygen-2	-	Covalent
18	$\text{NH}_4\text{Cl}$	Nitrogen-1	Hydrogen-4	Chlorine-1	Ionic (with covalent polyatomic ion)
19	$\text{SF}_6$	Sulfur-1	Fluorine-6	-	Covalent
20	$\text{KNO}_3$	Potassium-1	Nitrogen-1	Oxygen-3	Ionic (with covalent polyatomic ion)

True/False Statements:

Answer:

1. True
2. True
3. True