b. a chemical that cannot be broken down or separated into other chemicals
Hello, and this is my own words Periodic trends are specific patterns in the properties of chemical elements that are revealed in the periodic table of elements. Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.
Hope This Helps. and have good day!
<span>equilibrium constant times the concentration of water. - 100% guaranteed correct</span>
Answer: c 3
Explanation: Nitrogen I forgot the other one I think hydrogen and oxygen hope this helps!