An ion is a particle that has a net electrical charge. An ion with a positive charge is called a proton and an ion with a negative charge is called an anion. When a stable atom gains or loses electrons then it is called an ion. ...
Write the chemical formula for each of the following ionic compounds. Indicate if they are soluble or insoluble. a. calcium sulfate b. silver(I) nitrate c. magnesium phosphate d. iron(II) acetate e. barium hydroxide f. lead(IV) fluoride What is the ...
relative to the metal, of at least one alkyl sulfide and alcohol polyethoxylated hydroxyacetals corresponding to the formula r) - (s) - (ch) - (ch.sub.2 ch.sub.2 o - - -) n - oh in which formula: < / p & gt; & lt; p & gt; - r is an alkyl radical, ramified or rami...
Notes: * A substance that satisfies either or both of the following conditions is treated as impurity and not "Intentionally added": a) One contained in a natural material, which cannot be completely removed in a refining process by adequate technical means (i.e. natural impurities); and b)...
phosphor layers arranged such that colors of the phosphor layers correspond to the colors of the discharge cells, and being arranged to be excited by ultraviolet rays for emitting light, wherein a composition formula of at least one phosphor layer of the phosphor layers is Ba(1-x-y) Sry Mg...
Is copper most likely to be found in nature as an oxide, a sulfide, or a free metal (uncombined)? Explain. How does an ore differ from a mineral? Name the three general categories of procedures needed to produce pure metals f...
which one of these two ions is the cation and which one is the anion? Ions:A molecule or an atom can have an electric charge. The ones that do are called ions. In general, the electric charge of an atom or a molecule can...