Lesson check
1. use comparative relational thinking to
choose which equation is true.
a. 56 + 42 = 63 +49
b. 87 + 55 = 91 + 51
c. 61 - 37 = 57 – 41
d. 77 - 39 = 85 - 31 v

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is