Which is not a compound gold sugar silicon dioxide water?

Which is not a compound gold sugar silicon dioxide water?

Among the given choices above, the option that is not a compound is gold. The correct answer is option c. Gold, with the symbol Au, is a chemical element. The rest of the options are all compounds.

Which of the following substances is not a compound?

Answer. Answer: (ozone) consists of only one kind of atom oxygen. The structure formed by only one type of atom is called a molecule not compound.

Which of the following is not a compound Brainly?

Answer: Germanium is not a compound because it is not a substance.

Which is not an example of a compound?

The following are examples of NOT compounds. Br2 , bromine, is a diatomic element, or a molecular element. Only one element is in its structure though, so it is not a compound. Ar , argon, is an atom; thus, it cannot be multi-atomic, and consequently is not a compound.

Is carbon dioxide a compound Why?

Carbon dioxide is a compound. Its molecules consist of one carbon atom joined to two oxygen atoms. In the atmosphere, carbon dioxide is a greenhouse gas. We use carbon dioxide to make drinks fizzy and keep foods fresh.

Which form of carbon dioxide has higher entropy?

(d) Same argument as part (c). Carbon dioxide gas has the higher standard entropy (see Appendix 3). (e) O3 has a greater molar mass than O2 and thus has the higher standard entropy.

Why is high entropy favorable?

The entropy of our system has increased, because we have relaxed a constraint and allowed more microstates into our system. Most of these final states look disordered. Diffusion is therefore an entropically favorable process that brings an ordered system into a disordered one.

In which case entropy change is negative?

In option (d) change in entropy is negative because at higher temperature degree of randomess is high.

In which case change in enthalpy is negative?

If so, the reaction is endothermic and the enthalpy change is positive. If more energy is produced in bond formation than that needed for bond breaking, the reaction is exothermic and the enthalpy is negative.

In which case change in entropy is positive?

According to the second law of thermodynamics, everything is normally in a state of positive entropy. For a spontaneous reaction, entropy change is always positive.

Does entropy change during phase change?

The entropy of a system undergoing a phase transition increases if the phase transition is towards higher internal energy (e.g., melting) and decreases if the phase transition is towards lower internal energy (e.g., freezing). The change in the entropy of the surroundings is of opposite sign.

Which has least entropy?

Diamond