The correct answer is:
C. valence.
Explanation:
The valence or valency of an element is a stratagem of its connecting power with other atoms when it makes chemical compounds or molecules.
A valence electron is an outer shell electron that is connected with an atom, and that can compete in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond provide one valence electron in order to form a shared pair
When converting Joules to Kilo-joules think like math kilo is 0.1 of 100 so 200 joules would equal 0.2 kilo-joules. Hope this helps ;)
Answer is: a nation-state
Proof: Terms in this set (133) An independent country in which people share a common culture is called. A nation-state. The right to exercise supreme power and authority over a region, a group, or oneself. Sovereignty.
A toxic substance<span> is a </span>substance<span> that can be poisonous or cause health effects. People are generally concerned about chemicals like polychlorinated biphenyls (PCBs) and dioxin which can be found at some hazardous waste sites.</span>
tectonic plates boundaries
