Heats of Solution May Be Either Positive or Negative

question 78

True/False

Heats of solution may be either positive or negative.

---

Definitions:

He

Helium, a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas series in the periodic table.

Lewis Dot Structure

A graphical representation of the valence electrons of atoms, indicating how the electrons are shared or paired between atoms in a molecule.

Ca

Calcium, a chemical element with the symbol Ca and atomic number 20, an alkaline earth metal essential for living organisms, particularly in cell physiology.

Lewis Dot Structure

A diagrammatic representation of the valence electrons in an atom, ion or molecule, using dots around the symbol of an element.