A chemical compound always contains exactly the same proportion of elements by mass.
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A law that states that a compound always contains the same elements in the same proportions.
Source: e2020
The collision theory is when atoms, molecules or ions bash together or collide together.
Collision theory states that the rate of a reaction may be increased by : increasing pressure; raising the amount of heat energy; raising the concentration of the reactant and by introducing a catalyst.
According to kenetic theory, particles of matter are constantly in motion. The energy of the kenetic (moving) particles determine the temperature and behavior of matter.
Reactants
Gas molecules are in continuous random motion and they collide with each other.
Isomerism. The structures of the molecules are different even when the numbers of atoms are the same. Organic molecules are the most common examples of this. Compare n-butane and iso-butane same formula different structures. See link
Fructose
natural sugars.....lactose in milk, fructose in fruit and honey
liver is not the correct answer for body's chemical factory.the correct answer is pancreas
Yes, the halogens did occur in nature as free elements.