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A hydrated compound contains 1 mole of cation M, 3 mole of anion A, and 2 moles of water. The correct formula is
a. 2MA3·H2Ob. MA2·3H2Oc. MA2·3H2Od. MA3·2H2O
Q- Light is emitted when
a. electrons in excited states return to their ground states.b. the energy of a photon is absorbed by an atom.c. electrons get excited to higher energy orbitals.
Q- The water molecules in a hydrate are very tightly bound and cannot be removed by heating.
True
False
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