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What is the coordination number of the Fe atom in K3[Fe(C2O4) 3]?
Q1: Which of the following statements about positrons
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Q139: Which of the following is zero at
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Q167: O<sub>2</sub>(g)+ 4 H<sup>+</sup>(aq)+ 4 e<sup>-</sup>→ 2 H<sub>2</sub>O(l)E°