H2O is the same thing as HOH correct?
Does it matter which one you use in a Double Replacement Reaction? To me personally, HOH is easier to balance. Would I get marked down if I left HOH in my balanced reaction, if technically speaking, both are interchangable?
You wouldn't get marked down by me. I don't know about others but I suspect all will accept HOH as well as H2O. I, too, find it easier to balance in many cases using HOH.
Yes, you are correct. H2O and HOH represent the same compound, which is water. H2O is the chemical formula for water, while HOH is a molecular formula that represents the structure of water.
In a chemical equation, the choice of using H2O or HOH does not typically affect the validity or correctness of the reaction. Both forms are interchangeable, and chemists often use them interchangeably based on personal preference or the specific context.
When balancing a chemical equation, your primary goal is to ensure that the number of atoms of each element on both sides of the equation is equal. If you find it easier to balance the equation using HOH, you can certainly represent water as HOH in your balanced equation. However, it is always a good practice to follow any specific guidelines provided by your instructor or the style guide you are using.
While using HOH instead of H2O should not generally result in being marked down, it is advisable to consult your teacher or refer to the specific guidelines of your course to ensure that you are following their preferred notation. Different educational institutions or exams may have different requirements or preferences regarding the representation of compounds in chemical equations.