Numbergrid puzzles are a special kind of logic puzzle, where the goal is to uncover the pattern of black squares hidden within a grid. A series of numbers is provided for every row and column which defines that row or column's sequence of black squares.
The hydroxide ion is a negatively charged molecule made up of one oxygen bonded to one hydrogen. When dissolved in water, the hydroxide ion is an incredibly strong base. In fact, according to the Arrhenius definition of a base, the presence of a hydroxide ion is what makes a chemical a base.A base is a chemical that has a high pH, tastes soapy, feels slippery and reacts well with acid.n fact, according to the Arrhenius definition of a base, the presence of a hydroxide ion is what makes a chemical a base. A base is a chemical that has a high pH, tastes soapy, feels slippery and reacts well with acid.
Similarly, the Hydrogen atom can sometimes bind another electron to it. Such a Hydrogen atom is negatively ionized. In astronomy, the former kind of ionization is much more common. In heavier atoms, the proton is replaced with a mixture of protons and neutrons collectively called the nucleus. The nucleus of the Hydrogen atom is just one proton.