The Innovation of technology essays

The Innovation of technology essays Technology has been mandatory for human existance. It's unseemingly possible to claim that it wasn't, no matter how advanced the technology was its proved time after time (in my opinion) to be our greatest benefactor in the construction of the new world and the maintainment of the old world. The milieu we live in now is more advanced and the technolgy we possess is seemingly limitless. But it wasn't always this way, it took many many centuries, and hundreds and thousands of hit and misses. Im going to explain the devlopement of our New World by clarifying the events and innovations from the old world. The European settlers arrived by large vessels and ships, they were usually comfortable and sea worthy. They were able to arrive relatively easy but nothing could prepare them for the hardships they were destined to endure. they were forced to start anew with all their amenities behind them death, disease, unbearable wheather, and famine were all they came to know. This was a wake up call for the settlers they came to rely on their old world technologies. They had plenty of virgin land they used the trees to produce settlements and used the newly cleared land for cultivation. After the harnested the old technologies came to be, naturally evolution took place they established a government whose definition was to restrain competition for wealth within its jurusdiction. The main purpose the government was created was to prevent "the condition of war of everyone against everyone". Governments motivated exportation and dissuaded any sort of importation this came to be known as mer cantilism or the mercantile theory. Many towns and cities were constructed, they came to depend on mills for the preperation of goods soon the laborious tasks of mills were made obsolete by the developement of watermills. Watermills were more productive and made a use of the New Worlds plentiful streams and rivers. Major ...

Solubility Rules for Inorganic Compounds

Solubility Rules for Inorganic Compounds These are the general solubility rules for inorganic compounds, primarily inorganic salts. Use the solubility rules to determine whether a compound will dissolve or precipitate in water. Generally Soluble Inorganic Compounds Ammonium (NH4), potassium (K), sodium (Na) : All ammonium, potassium and sodium salts are soluble. Exceptions: some transition metal compounds.Bromides (Br–), chlorides (Cl–) and iodides (I–): Most bromides are soluble. Exceptions: salts containing silver, lead, and mercury.Acetates (C2H3O2–): All acetates are soluble. Exception: silver acetate is only moderately soluble.Nitrates (NO3–): All nitrates are soluble.Sulfates (SO42–): All sulfates are soluble except barium and lead. Silver, mercury(I), and calcium sulfates are slightly soluble. Hydrogen sulfates (HSO4–) (the bisulfates) are more soluble than the other sulfates. Generally Insoluble Inorganic Compounds Carbonates (CO32–), chromates (CrO42–), phosphates (PO43–), silicates (SiO42–): All carbonates, chromates, phosphates,  and silicates are insoluble. Exceptions: those of ammonium, potassium and sodium. An exception to the exceptions is MgCrO4, which is soluble.Hydroxides (OH–): All hydroxides (except ammonium, lithium, sodium, potassium, cesium, rubidium) are insoluble. Ba(OH)2, Ca(OH)2 and Sr(OH)2 are slightly soluble.Silver (Ag): All silver salts are insoluble. Exceptions: AgNO3 and AgClO4. AgC2H3O2 and Ag2SO4 are moderately soluble.Sulfides (S2–): All sulfides (except sodium, potassium, ammonium, magnesium, calcium,  and barium) are insoluble.Aluminum sulfides and chromium sulfides are hydrolyzed and precipitate as hydroxides. Table of Ionic Compound Solubility in Water at 25 °C Remember, solubility depends on the temperature of the water. Compounds that dont dissolve around room temperature may become more soluble in warm water. When using the table, refer to the soluble compounds first. For example, sodium carbonate is soluble because all sodium compounds are soluble, even though most carbonates are insoluble. Soluble Compounds Exceptions (are insoluble) Alkali metal compounds (Li+, Na+, K+, Rb+, Cs+) ammonium ion compounds (NH4+ Nitrates (NO3-), bicarbonates (HCO3-), chlorates (ClO3-) Halides (Cl-, Br-, I-) Halides of Ag+, Hg22+, Pb2+ Sulfates (SO42-) Sulfates of Ag+, Ca2+, Sr2+, Ba2+, Hg22+, Pb2+ Insoluble Compounds Exceptions (are soluble) Carbonates (CO32-), phosphates (PO42-), chromates (CrO42-), sulfides (S2-) Alkali metal compounds and those containing the ammonium ion Hydroxides (OH-) Alkali metal compounds and those containing Ba2+ As a final tip, remember solubility is not all-or-none. While some compounds completely dissolve in water and some are almost completely insoluble, many insoluble compounds are actually slightly soluble. If you get unexpected results in an experiment (or are looking for sources of error), remember a small amount of an insoluble compound may be participating in a chemical reaction.