MgO does not readily dissolve in water because?

A. of its high melting point
B. it is a covalent compound
C. it forms a hydroxide when dissolved in water
D. its lattice energy is higher than its hydration energy

Correct Answer: Option D

D. its lattice energy is higher than its hydration energy

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Next Consider the following reaction equation: CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(l) + CO2(g). What mass of CaCI2 would be obtained when 25.0g of CaCO3(s) is reacted with excess HCI(aq)? [CaCO3 = 100; CaCI2 = 111] »

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