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(a) Ice floats in water but solid D2O sinks in water. (b) Small amounts of calcium hydride is used to dry organic solvents (c) Dihydrogen

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(a) Ice floats in water but solid D2O sinks in water. (b) Small amounts of calcium hydride is used to dry organic solvents (c) Dihydrogen has nuclear spin isomers 7. Shown below is the structure of magnesium hydride, which adopts a rutile structure. (a) Using the figure shown above to show that the formula for magnesium hydride is MgH2 (b) How is magnesium hydride made

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