Which of the following substances forms an ionic lattice instead of a molecule?Group of answer choicesNaClCO2O2H2ONext

The substance that forms an ionic lattice instead of a molecule is NaCl (Sodium Chloride).

Here's why:

1. NaCl: Sodium (Na) is a metal and Chlorine (Cl) is a non-metal. When a metal and a non-metal combine, they form an ionic bond. In NaCl, Sodium loses an electron to become Na+ and Chlorine gains an electron to become Cl-. These ions then arrange themselves in a 3D structure known as an ionic lattice.

2. CO2: Carbon Dioxide is a molecule, not an ionic lattice. It consists of one Carbon atom double bonded to two Oxygen atoms.

3. O2: Oxygen is a diatomic molecule, meaning it consists of two atoms of the same element. It does not form an ionic lattice.

4. H2O: Water is a molecule, not an ionic lattice. It consists of two Hydrogen atoms bonded to one Oxygen atom.