- Which one is/are electrophillic substances?? a)H20 b)NH3 c)CO2 d)SO3 e)SO2?

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If a multiverse exists, how would separate universes be different? The product of two consecutive room numbers is 240. Find the room numbers. x= x+1=? Tan2x=2tanx/1+tan^2x... my math teacher gave me this but I thought the double-angle identity was with a denominator 1-tan^2x? When the equation is balanced, Zn + CuSO4 → ZnSO4 + Cu, the coefficient of copper is:
0,
1,
2, or
3? Is our solar system flat?