Answer:
Neutral.
Explanation:
A solution with 7 on the pH scale would be neutral.
The answer is: Aristotle.
Aristotle (384–322 BC) was an ancient Greek philosopher.
He was interested in empirical studies and shifted from Platonism to empiricism.
Empiricism is a theory that states that knowledge comes from sensory experience and through experiments.
Empirical evidence is the information received by observation through experimentation.
1. Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances.
2. A pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties (i.e., boiling point and melting point).
3. A pure substance is pure, while a mixture is impure.
Periodic trends are specific patterns that are present in the periodic table that illustrate different aspects of a certain element, including its size and its electronic properties. Major periodic trends include: electronegativity, ionization energy, electron affinity, atomic radius, melting point, and metallic character. Periodic trends, arising from the arrangement of the periodic table, provide chemists with an invaluable tool to quickly predict an element's properties. These trends exist because of the similar atomic structure of the elements within their respective group families or periods, and because of the periodic nature of the elements.
