Answer:
686.43363984 is the answer when 7.8 moles is converted.
i believe the answer is A (((:
The tea was no longer hot or (brewed) so the 5th didn’t dissolve like the others because the tea was hot or warm enough anymore it cooled down. So the sugar won’t dissolve no more.
Adding fertilizer to stimulate the aquatic plant growth, and putting research and money into renewable energy