<span>Answer: option (3) energy, charge and mass.
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<span>Explanation:
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<span>1) The conservation of energy is a universal principle: energy is neither created nor destroyed. This is the first law of thermodynamic.
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<span>2) Mass conservation is another universal principle: mass is neither created nor destroyed. This principle is the base of the stochiometry: thas mass of the reactans equal the mass of the products. Another consequence, since the atoms are not transformed in the chemical reactions, is that the number of each kind of atoms in the reactants equal the number of the same kind of atoms in the products.
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<span>3) The third principle is the conservation of charge. Also, charge is neither created nor destroyed. The electrons gained/lost by one species are lost/gained by other species. So, when one atom or molecule is oxidized other is reduced.</span>
Democritus because of Greek atomism. In the 5th century BCE, Leucippus and his pupil Democritus proposed that all matter was composed of small indivisible particles called atoms.
The number of millimoles of solute per liter of water is used to express the osmotic concentration of a solution, also known as Molarity.
What is Molarity?
It is a measure of the concentration of a chemical species, in particular of a solute in a solution. In terms of the number, it is a substance per unit volume of solution. In chemistry, the most commonly used unit for the term molarity is the number of moles per liter.
To know more about Molarity go to the given link :
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1.8x10^20 atoms x (1 mole / 6.022x10^23 atoms) = 3.0x10^-4 mole
The speed of light is (2.998x108/3.00x109) meters per second = 300,000 kilometers per second.
