B.
The cynobacteria were already there without the oxygen, so that rules out A, and a lot of prokaryotes were anaerobic, so that rules out C. Finally, Photosynthesis does not require oxygen. Instead, Oxygen is a waste product of it. Therefore, it cannot be D. So, we are only left with B
Hoped this helped :D
Answer: A
Explanation: I just took the quiz.
Answer:
CH₄ + N₂Cl₄ → CCl₄ + N₂ + 2H₂
Explanation:
Chemical equation:
CH₄ + N₂Cl₄ → CCl₄ + N₂ + H₂
Balance chemical equation:
CH₄ + N₂Cl₄ → CCl₄ + N₂ + 2H₂
Step one:
CH₄ + N₂Cl₄ → CCl₄ + N₂ + H₂
Left hand side Right hand side
C = 1 C = 1
H = 4 H = 2
Cl = 4 Cl = 4
N = 2 N = 2
Step 2:
CH₄ + N₂Cl₄ → CCl₄ + N₂ + 2H₂
Left hand side Right hand side
C = 1 C = 1
H = 4 H = 4
Cl = 4 Cl = 4
N = 2 N = 2
The answer to this question is d argon that’s the answer
