Answer:
It is a chemical change
Explanation:
the reason is because the will not be able to materialize back into it's original form.
Prevent the release of toxic vapored, dusts, mists, or gases into the workplace air
Answer:
Explanation:
the forces between the molecules are stronger in solid than in liquids
PbCl₂(aq) → Pb²⁺(aq) + 2Cl⁻(aq)
NaCl(aq) → Na⁺(aq) + Cl⁻(aq)
Pb²⁺(aq) + 2Cl⁻(aq) ⇄ PbCl₂(s)
At increase the concentration of chloride ions - concentration of lead ions decreases, the lead chloride is formed.