When is the principle of conservation of mass true?
B. Only for reactions that take place in closed systems.
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Answer:
youre gonna have to include the answers for me to help
Explanation:
A.) Phosphate ion or Orthophosphate
d.) Hydroxide
D.) Ammonium
e.) Iron
C.) Nitrate
f.) Sulfur dioxide
<span> strictly speaking, a molecule has at least two atoms. ... Atoms with full valence electron shells are stable. Full Text[ edit ] The noble gases are a group of chemical elements that make up Group 18 on the periodic table.</span>
The answer is natural gasses