Kontrolnaia Rabota Po Khimii 11 Klass Stroenie Veshchestva S Otvetami May 2026

has a (weak Van der Waals forces between molecules).

The ability of an atom to attract electrons. 📝 Practice Test: Structure of Matter Section A: Multiple Choice Which type of bond is found in a molecule of Cl2cap C l sub 2 ? B) Covalent non-polar C) Covalent polar D) Metallic In which substance are there hydrogen bonds? CH4cap C cap H sub 4 H2Ocap H sub 2 cap O H2Scap H sub 2 cap S HClcap H cap C l What is the crystal lattice type for Diamond ( )? A) Molecular D) Metallic Which element has the highest electronegativity? A) Oxygen ( B) Fluorine ( C) Nitrogen ( D) Chlorine ( Section B: Matching & Short Answer Match the substance to its bond type: NaClcap N a cap C l NH3cap N cap H sub 3 Options: a) Metallic, b) Ionic, c) Covalent polar Identify the hybridization of the Carbon atom in Methane ( CH4cap C cap H sub 4 ): Answer: ________ Section C: Problem Solving Draw the Lewis structure (electron dot diagram) for CO2cap C cap O sub 2 . Explain why SiO2cap S i cap O sub 2 has a very high melting point while CO2cap C cap O sub 2 is a gas at room temperature. ✅ Answer Key B (Same atoms share electrons equally). B (Hydrogen bonded to highly electronegative C (Strong covalent bonds in a 3D network). B (Fluorine is the most electronegative element).

Ionic, Covalent (polar/non-polar), Metallic, and Hydrogen. Crystal Lattices: Atomic, Molecular, Ionic, and Metallic. has a (weak Van der Waals forces between molecules)

Nucleus (protons/neutrons) and electron shells.

Provide a on how to determine hybridization. B) Covalent non-polar C) Covalent polar D) Metallic

💡 Remember that the type of crystal lattice determines physical properties like hardness and melting point. If you'd like, I can: Create a Version 2 with different questions. Focus specifically on organic molecule structure .

has an (strong covalent bonds throughout). CO2cap C cap O sub 2 A) Oxygen ( B) Fluorine ( C) Nitrogen

(Metal + Non-metal), 2-c (Different non-metals), 3-a (Pure metal). sp3s p cubed (Tetrahedral shape). Structure: (with two lone pairs on each Oxygen). Reasoning: SiO2cap S i cap O sub 2