When a substance melts, the solid gains heat, and the motion of the particles increases (particles move faster in liquid form than in solid form).
Answer:
Explanation:
2-methyl-3-ethylpentane | C8H18 | ChemSpider.
Boiling Point: 115.3±7.0 °C at 760 mmHg
Molecular Formula: C8H18
Density: 0.7±0.1 g/cm 3
Enthalpy of Vaporization: 32.9±0.0 kJ/mol
Answer - The Base increases the concentration
If we're talking about the pregnancy-morning-pain-relief smear, it's an exogenous hazard.