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Chemical Bonding and Compound Naming Quiz

#1

What type of bond involves the sharing of electron pairs between atoms?

Covalent bond
Explanation

Shared electron pairs between atoms.

#2

What is the chemical formula for sodium chloride?

NaCl
Explanation

Sodium and chlorine combine in a 1:1 ratio.

#3

Which type of bond results from the electrostatic attraction between positively and negatively charged ions?

Ionic bond
Explanation

Attraction between oppositely charged ions.

#4

What is the chemical formula for water?

H2O
Explanation

Two hydrogen atoms and one oxygen atom.

#5

What is the name of the compound with the chemical formula H2SO4?

Sulfuric acid
Explanation

Composed of sulfur, hydrogen, and oxygen.

#6

Which of the following is an example of a polar molecule?

H2O
Explanation

Asymmetrical distribution of charge due to electronegativity difference.

#7

What is the molecular geometry of a molecule with 3 bonded pairs and 1 lone pair of electrons?

Trigonal pyramidal
Explanation

Three bonded atoms and one lone pair result in a pyramidal shape.

#8

Which of the following molecules has a trigonal bipyramidal molecular geometry?

SF6
Explanation

Five electron pairs result in a bipyramidal shape.

#9

What is the hybridization of the central atom in ammonia (NH3)?

sp3
Explanation

One s and three p orbitals combine.

#10

What is the molecular geometry of a molecule with 2 bonded pairs and 2 lone pairs of electrons?

Bent
Explanation

Lone pairs repel bonded pairs, resulting in a bent shape.

#11

Which of the following molecules has a nonpolar covalent bond?

CO2
Explanation

Symmetrical distribution of charge due to equal electronegativity.

#12

Which of the following compounds has both ionic and covalent bonds?

HCl
Explanation

Covalent bond between hydrogen and chlorine, forming an ionic compound.

#13

What is the name of the compound with the chemical formula CaCO3?

Calcium carbonate
Explanation

Combination of calcium, carbon, and oxygen atoms.

#14

Which of the following compounds is an example of a network covalent solid?

Diamond
Explanation

Each carbon atom forms four covalent bonds.

#15

What is the name of the compound with the chemical formula K2SO4?

Potassium sulfate
Explanation

Combination of potassium ions and sulfate ions.

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