Which ruler was responsible for the failure of the Macartney mission described in this text?

 Emperor Qianlong

Explanation:

I'm not really  sure if this is right because I don't know what the text says, but I read about it a little.

i discarded the supernatant and kept the pellet in this part of the experiment because you have to return all unused chemicals into their original containers at the end of each labratory.

explanation:

answer; i believe that the correct answer is (chronological order);