Ascientist finds a piece of rock in a crater. he analyzes the rock and realizes that the composition is mostly of iron and nickel. he claims that he found a meteor. what is most likely the scientist’s error?

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?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

Areaction in which products can react to re-form reactants is