When it is treated with sodium ethoxide in deuterated ethanol (C2H5OD), 1,3-cyclopentadiene exchanges all of its hydrogens for deuterium. Draw a structure for the reactive intermediate that forms in this reaction in its hydrogen form. Draw cations and anions in separate sketchers. Separate structures with signs from the drop-down menu.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

If a particle has z = 25 and 23 electrons, what is its charge?