Tổng khối của hỗn hợp X gồm o2 và 03 so với h2 là 18. Tính phần trăm thể tích của o2 và o3 trong hỗn hợp X

The balanced chemical equation for this lab is: 3cucl2(aq) + 2al(s) 3cu(s) + 2alcl3(aq) if 10.5 g copper chloride react with 12.4 g aluminum, what is the limiting reactant?

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?