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A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute.
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Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature, is called a natural law- D.
What are the variables you have? I can't answer if I don't know? Haha. :)
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atomic number
Each period, numbered one through seven, contains elements of increasing atomic number. Unlike Mendeleev's original list, the modern periodic table is based on atomic number, or the number of protons in an element's atomic nucleus
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