The competing organisms would eventually outnumber the competition
Balance and graduate cylinder
It’s kind of difficult to explain without being with you in person but try looking up videos on YouTube as they tend to be extremely helpful. Don’t give up on the videos right away though, keep watching it over and over until you understand. Also try to find a teacher or a smart friend to help to if you still don’t understand. I recommend getting a tutor if you require long term help. Best of luck in your studies!!
Answer:
the temperature changes finally to 339k because of the increase in pressure of the gas
Don't all halogens have 8 valence electrons? They don't need to gain or lose any because they are already stable.