A chemical formula shows the types and numbers of atoms in a molecule and their arrangement.
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Q47: An atom that has a filled valence
Q48: An example of an anion is K+.
Q49: List four of the principal chemical elements
Q50: Oxidation occurs when an atom gains one
Q51: Identify and compare the properties of the
Q53: What is the approximate pH of ammonia?
A)
Q54: The tetrahedron shape of a methane molecule
Q55: Which substance is an example of a
Q56: Which element forms the backbone of organic
Q57: The valence shell of hydrogen or helium
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