G. According to what law must an equation be balanced? H. In the space below, ba

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G. According to what law must an equation be balanced? H. In the space below, balance the equation by writing the correct coefficients on the appropriate blank lines: 28. A. How many electrons can the first shell of an atom hold? B. How many electrons can the second shell hold? C Helium (He) has two electrons, which form a nonbonding pair. How many electrons are in the valence shell of helium? D. In the space below draw the electron-dot structure for helium. Would you expect helium to chemically react with other elements? Why or why not?

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G. According to what law must an equation be balanced? H. In the space below, ba

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