I've never taken a chemistry class (I'm in the eighth grade), but I'm pretty advanced mentally and I love scienceSo from what I have learned' the suffix quot;-idequot; shows that that element is an anionSo why do we use quot;oxidequot; to refer to covalent compounds like water? I know water is a polar molecule, but its no ionic! The only qualification I have in chemistry is having read Lavoisier's quot;the Elements of Chemistryquot;In the book he says that quot;oxidequot; means that a substance is oxidized but not enough to be an acidThis seems contrary to what I have learnedCan someone straiten this out for an advance eighth grader who has never taken a real chemistry class?
the required angle is 65/2 32.5 deg from the center line of the length of the rod or 57.5 deg from the squared off end of the rod.
.37.5 degrees slanted cut on both end piecesMakes sense since to make a 90 degree right angle weld you would put a 45 degree angle on the end of both pieces If you are using a cut off saw with a protractor on the base, make sure the top edge of the aluminum bar is exactly at the inside edge of the abrasive wheel (which is set at 37.5 degrees on the protractor) Maybe put a piece of wood in there to check where the abrasive wheel begins to cut so you know exactly where the apex of the two pieces will meet when you cut the aluminumCut slowly to get a fine edge.good luck
oxide oxygen An oxide (pron.: /??ksa?d/) is a chemical compound that contains at least one oxygen atom and one other element[1] in its chemical formulaMetal oxides typically contain an anion of oxygen in the oxidation state of ?2Most of the Earth's crust consists of solid oxides, the result of elements being oxidized by the oxygen in air or in waterHydrocarbon combustion affords the two principal carbon oxides: carbon monoxide and carbon dioxideEven materials considered pure elements often develop an oxide coatingFor example, aluminium foil develops a thin skin of Al2O3 (called a passivation layer) that protects the foil from further corrosion.[2] Different oxides of the same element are distinguished by Roman numerals denoting their oxidation number, e.giron(II) oxide versus iron(III) oxide.
