Use the chemical reaction: 2Mg + O2 > 2MgO to answer the question below. If 5 moles of O2 react, how many moles of MgO will form?

What conclusion can you draw from this experiment about the components of the black ink?

Identify the limiting reactant when 9.65-g h2so4 reacts with 6.10-g of naoh.the equation is h2s04 + 2naoh = 2h2o + na2so4• what is the theoretical yield of na2so4, in grams? • how much of the excess reagent will remain after the reaction has been completed? • if 10.5-g of na2so4 are actually recovered experimentally, what is the percent yield?

What is one measurement needed to calculate the speed of an object?