Nuclear reactions are different from the chemical reactions , Since chemical reactions occur between the atoms of the reactant elements by the binding between the electrons of the outermost energy levels & no change...
Each substance stores an amount of energy inside it , This amount of energy called the internal energy , This amount of energy is the summation of three types of energy which are the...
Heat and temperature Heat is a form of energy , The flow of heat from one position to another depends on the difference in temperature between them, The atoms or molecules of substances are...
Energy Energy is very important in our life , where we can’t carry out different activities ( mental or muscular ) without the produced energy from burning sugar inside our bodies , we can’t...
Living organisms life depends on the occurrence of chemical reactions inside their bodies , these reactions are called metabolism , Metabolism is necessary for growth , repairing the damaged tissues and obtaining the energy...
The mole Mole is the unit of the quality of matter in the International System of Units ( SI ) and it is defined by different ways according to the mole and mass of...
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