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diffusion
diffusion
breathing
The acid is dissociated in water in ions and doesn't produce molecules.
There are many different reactions that form water, the combustion of organic molecules, neutralisation reactions to name a few but you could not tell the mechanism of a reaction by that it forms water
Molecules move from an area of higher concentraion to lower concentration by a process called "diffusion." When the molecules move from more to less concentration, it is called a "concentraiton gradient." When molecules move generally in one direction (towards one area), it is called "net direction."
answer:50
many are called, few are chosenMatthew 22.14 from the Bible.
Elements are composed of one 'type' of particle (atom) and are GENERALLY not called molecules, but there are exceptions. For instance, Oxygen, Hydrogen and a few other Elements in nature bond with themselves and form molecules...H2 and O2. Free atoms of them are rarely found naturally occurring.
A vacuum
a few molecules
There are quite a few different molecules that are found in soda. There are carbon molecules found in soda for example.