The development of oral skills can be only done in an environment where the student is comfortable, in the presence … More Role of the Teacher in Developing Oral Skills
MOLE- It is an amount of a substance in which 6.022X1023 particles are present. 6.022X1023 is known as … More Mole Concept
Question: Knowing the electron gain enthalpy values for O → O– and O → O2- as –141 and 702 kJ mol-1respectively, how … More Electron gain Enthalpy
What are radio isotopes? How are these affect human life?
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