12.7g of NaCl are dissolved in water. The molarity of the solution is 0.350M. Determine all unknowns:
g Naci

mol NaCl =
unity
L
unit
M
unity
finalize
(after completing ALL problems)
check answers
Unit 112: chemistry beta: solutions, preparation problems: molarity
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C: plants and animals

Yes it would be a physical change.

In any atom of any element, you will find protons and neutrons in the nucleus of any atom 

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