The conservation of mass law states that matter can neither be created nor destroyed during a chemical reaction.
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Q49: An alpha particle consists of two protons
Q50: How many protons are found in a
Q51: The atomic weight for an atom is
Q52: Ionization energy _ from top to bottom
Q53: Which element, isotope, or ion listed below
Q55: Fr+ is called _.
A) a cation
B) an
Q56: Which species has 16 protons, 18 neutrons
Q57: Atoms combine to form molecules (compounds) in
Q58: Ions are _.
A) atoms that have gained
Q59: Which of the following has more protons
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