Which has the higher enthalpy under these conditions, 2 o3(g) or 3 o2(g)?

In all living cells dna controls cellular activities by

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?