The standard state formation reaction is a chemical reaction in which one moles of substance in its standard state is formed from its constituent element in their standard state.All the substance must be in their most stable state at 100kpa and 25 degrees celsius.
therefore for HF is
1/2H2 +1/2F2 =HF
All of these are compounds except oxygen because a compound is two or more different elements bonded together.
Answer:
Some of the chemicals used to preserve food and give it color are sodium nitrate, sodium benzoate, and propionate
Explanation:
