predict the enthalpy change positive or negative for each of the following changes 1) state a liquid crystals into solid
BB. 2)caco3 ---------≥cao+o2
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the reactant that is present in limiting amount is called limiting reagent. it affects the formation of compound.
2 aufbau's principle-- the electrons are added progressively to the various orbtals in the increasing order of the energy starting from the lowest energy.
3 one unpaired electron.
5 because density of ice is less than that of water.
12 a) 16
b) 6
16 the elements which have same no. of electrons are called isoelectronic species.
Ca+2
heisenberg's uncertainity principle-- the position and momentum of an electron cannot be found accurately simultaneously.
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