None, Argon is an inert gas. Arsenic might work though for an effecient solar cell.
a chemical bond
A compound
Chemical bonds are formed and energy is released.
LiBr would be the chemical formula. Lithium has +1 electron and Bromine has -1 electron so they combine easily.
Nitrogen Oxide is formed from Nitrogen when it is mixed with Oxygen. The word equation for the formation of this pollutant is N2 + O2 ----> 2NO (Nitrogen + Oxygen -----> Nitrogen Oxide)
Nitrogen oxide can refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds.
a chemical bond
of course nothing because a compound is only formed by chemical reaction
Compound is formed by the chemical combination of two or more substances.
Chemical bonds are formed by sharing of atoms.
a chemical reaction
A compound
A group hydroxide doesn't exist.
Its a chemical change, and the simplest is when two atoms combine to from a compound. When there is a single oxygen atom, it is called ozone, then two combine in an ionic bond, they are an oxygen molecule.
Chemical bonds are formed and energy is released.
Depends on what substance is being formed. If it's nitric oxide (NO), then 5. If it's nitrogen dioxide (NO2), then 10. If nitrate (NO3), then 15.
Sulfur dioxide and nitrogen dioxide combine with water to make acid rain. Nitric oxide is neutral but is rapidly oxidised to nitrogen dioxide.