The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element.
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I think mercury for element and sodium hypochlorite
Answer:
Volume of heptane in cylinder = 51.2mL
Volume of water = 33mL
Explanation:
Density(g/mL) = mass/ Volume
》Volume = mass/ Density
Please prompt me if I'm wrong in my workings. Hope this helped.
