Giving brainliest ✅✅ 5. Which reaction is an example of heterogeneous catalysis? (1 point)

A Ethene gas reacts with hydrogen gas by using a nickel catalyst.

B Hydrogen peroxide decomposes by using an aqueous iodide ion catalyst.

C Formic acid decomposes by using an acidic catalyst.

D Sulfur dioxide gas is converted to sulfur trioxide gas by using nitrogen chloride gas.

The allotropes of carbon include a variety of structures that include three-dimensional tetrahedral lattices, planes of hexagonal rings, cylindrical tubes of hexagonal rings, and spheres of five- and six-membered rings. similar shapes of network covalent atomic solids are possible with carbon nitride, boron, and pure silicon (e.g., silicene is a graphene-like allotrope of pure silicon). in contrast, silicates exist as either highly ordered or amorphous (more random) three-dimensional lattices. what could explain why there are there no naturally occurring sheets, stacked sheets, cylindrical tubes, or spheres of network covalent atomic solids composed of silicon and oxygen (sio2)? would pure silicate structures make good lubricants or good electrical conductors?