What happens to the particles in dry ice when it subimes

The particles in dry ice overcomes the force of attraction between them to change directly to gaseous state.

Explanation:

Matter exists in three states- solid, liquid and gas. When heated, solid changes to liquid and then gas. However, upon condensation, gas changes to liquid and then to solid. Some solids when heated change directly to vapour without an intermediate liquid state, such vapour will also condense to solid without going through the liquid state. Example includes: ammonium chloride, iodine crystals and sulphur. These solids undergo SUBLIMATION.

Dry ice which is also known as solid frozen carbon dioxide can undergo sublimation when subjected to -78°C. What actually happens to the particles ( molecules) of the frozen carbon dioxide is the existence of weak intermolecular forces between the molecules. Since the molecules are very weakly attracted to each other, frozen carbon dioxide molecules very readily go from the solid state to the gas state at low temperatures.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.