Answer:
In 1827, Brown observed, using a microscope, that small particles ejected from pollen grains suspended in water executed a kind of continuous and jittery movement, this was named “Brownian motion”. ... This random movement of particles suspended in a fluid is now called after him.
Explanation:
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Answer:
ions
Explanation:
atoms because of the charge
A factor that is changed in an experiment is called the Independent Variable.
The answer is b
Explanation:
Answer:
a thermos bottle uses a vacuum to keep heat in the thermos.
