HELP ASAP! WILL GIVE! Match each of the unknown ions to its appropriate description. 1.B+ 2.A− 3.D^2+ 4.C^2− a. A nonmetal that gained one electron b. A metal that lost one electron c. A nonmetal that gained two electrons d. A metal that lost two electrons

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3