Answer:
C) 2 H₂ + O₂ → 2 H₂O
Explanation:
4 atoms of hydrogen on reactant side
2 atoms of oxygen on reactant side
4 atoms of hydrogen on product side
2 atoms of oxygen on product side
Answer: Argon (Ar), which has 18 protons.
That would be evaporation.
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Iron rusts when exposed to air → chemical property
The answer to your question is 40° because freezing temp for a liquid is 32°