Predict the direction that predominates in this reaction F-(aq) + h2o(l) reverse reaction HF(aq) + oh-(aq)

List four observations that indicate that a chemical reaction may be taking place

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?