INTRODUCTION TO MATTER

What is the smallest unit of matter that retains the properties of an element?

Atom

Molecule

Compound

Ion

In a water molecule (H2O), what type of bond holds the hydrogen and oxygen atoms together?

Covalent Bond

Ionic Bond

Hydrogen Bond

Metallic Bond

Which of these elements is most likely to form an ionic bond with sodium (Na)?

Oxygen (O)

Chlorine (Cl)

Carbon (C)

Nitrogen (N)

Which of the following statements about covalent bonds is true?

They involve the transfer of electrons from one atom to another.

They are weaker than hydrogen bonds.

They only occur between metal atoms.

They involve the sharing of electron pairs between atoms.

Which of the following molecules contains a double bond?

H2 (Hydrogen)

O2 (Oxygen)

CH4 (Methane)

NH3 (Ammonia)

Which of the following is NOT a property of ionic compounds?

High melting and boiling points

Conduct electricity when dissolved in water

Form crystals

Low solubility in water

Which of the following elements is most likely to form a covalent bond?

Carbon (C)

Sodium (Na)

Magnesium (Mg)

Calcium (Ca)

What is the primary type of bond found in sodium chloride (NaCl)?

Covalent Bond

Ionic Bond

Hydrogen Bond

Metallic Bond

Which of these substances is an example of a molecular compound?

Sodium Chloride (NaCl)

Iron (Fe)

Water (H2O)

Calcium Carbonate (CaCO3)

Which of the following elements is most likely to form a triple bond?

Nitrogen (N)

Oxygen (O)

Carbon (C)

Hydrogen (H)

Which of the following elements is most likely to form a cation?

Chlorine (Cl)

Oxygen (O)

Nitrogen (N)

Sodium (Na)

Which of the following compounds is an example of an ionic compound?

NaCl (Sodium Chloride)

H2O (Water)

CO2 (Carbon Dioxide)

CH4 (Methane)

Which of the following statements about van der Waals forces is true?

They involve the sharing of electron pairs between atoms.

They are weaker than covalent and ionic bonds.

They only occur between polar molecules.

They are stronger than hydrogen bonds.

Which of the following elements is most likely to form a covalent bond with hydrogen?

Oxygen (O)

Sodium (Na)

Magnesium (Mg)

Calcium (Ca)

Which of the following statements about ionic compounds is true?

They have low melting points.

They are malleable.

They conduct electricity when molten or dissolved in water.

They are good conductors of electricity in solid state.

Which of the following elements is most likely to form a double bond with carbon?

Fluorine (F)

Hydrogen (H)

Oxygen (O)

Chlorine (Cl)

Which of the following is a property of covalent compounds?

INTRODUCTION TO MATTER

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