Protons are positive
Neutrons are neutral
Electrons are negatively charged
A. density
<span>Reaction rate increases with concentration.</span>
Answer:
a. mixtures are created through physical changes and compounds are created through chemical reactions
Explanation:
I think it's 1. PCl5= PCl3 + Cl2. I can't tell the exact reason but it's something to do with Atomic Redox Reaction
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