Final answer:
The O in H2O is given off as O2 gas into the air when water is split during this reaction.
Step-by-step explanation:
The O in H2O is given off as O2 gas into the air when water is split during this reaction. The reaction can be represented as:
2H2O(l) → 2H2(g) + O2(g)
In this reaction, two moles of water are decomposed to produce two moles of hydrogen gas and one mole of oxygen gas.
The shelf life of pre-filled condiment bottles in a sub shop depends on several factors such as the type of condiment, the preservative content, and how the condiment is stored. Generally, condiments like ketchup, mustard, and mayonnaise can last unopened for up to a year when stored in a cool, dry place.