YBC-Chemical formulas and bonding

Which type of bond involves the sharing of electrons between atoms?

• Ionic bond
• Covalent bond
• Metallic bond
• Van der Waals bond

What type of bond is formed between a metal and a nonmetal?

• Ionic bond
• Covalent bond
• Metallic bond
• Van der Waals bond

What is the Lewis symbol for sulfur?

• 1
• 2
• 3
• 4

How many valence electrons does oxygen have?

• 6
• 7
• 8
• 9

What is the name of the compound with the formula NaOH?

• Sodium hydroxide
• Sodium oxide
• Sodium peroxide
• Sodium carbonate

Which of the following is a molecular compound?

• NaCl
• CaCl2
• CO2
• Fe2O3

Which type of bond is characterized by the transfer of electrons between atoms?

• Ionic bond
• Covalent bond
• Metallic bond
• Van der Waals bond

What is the Octet Rule?

• Atoms tend to gain or lose electrons to attain a full valence shell of 8 electrons
• Atoms tend to share electrons to attain a full valence shell of 8 electrons
• Atoms tend to lose electrons to attain a full valence shell of 4 electrons
• Atoms tend to gain electrons to attain a full valence shell of 4 electrons

Which of the following is a monoatomic ion?

• CO3^2-
• Cl-
• PO4^3-
• SO2

What are the ions formed when HCl dissociates in water?

• H+ and OH-
• Na+ and Cl-
• H+ and Cl-
• Mg2+ and SO42-