7. When one DNA molecule is replicated, the second molecule is identical or nearly identical to the first DNA molecule. Why does this occur? *
To allow the cell to divide into new two cells with identical copies of DNA
To link enzymes
To make different strands of DNA
To make mistakes or mutations

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?