第十单元 酸和碱 学案(国外英文资料).docVIP

第十单元 酸和碱 学案(国外英文资料) The experimental phenomenon shows that the concentrated sulfuric acid has the thinking: what should I do if I accidentally put the concentrated sulfuric acid onto the skin or clothes? The phenomenon of placing after a while There is a bottle of 98% concentrated sulfuric acid, but I want to use dilute sulfuric acid, what should I do? 3. if the acid solution added to litmus or phenolphthalein, what will change? In addition to the acid-base indicator, which substances can react with the acid solution? The experimental phenomena and litmus test solution and phenolphthalein solution of magnesium and magnesium and zinc sulfate dilute hydrochloric acid and dilute hydrochloric acid and sulfuric acid iron zinc and iron in dilute hydrochloric acid with dilute sulfuric acid and dilute hydrochloric acid rust rust with dilute sulfuric acid: summed up the thinking of hydrochloric acid and sulfuric acid acid which have similar chemical properties? Chemical equation generator / / Exercises: 1. for the following substances in air quality, will increase the (1) concentrated sulfuric acid hydrochloric acid and the lime and the A. of the concentrated nitric acid B. 3 C. 4 D. 2 the 2. diluted sulfuric acid (A.), must have no special requirements of B. concentrated sulfuric acid along the wall slowly into the water, and stir C. water slowly pour sulfuric acid, and stir quickly D. concentrated sulfuric acid into the water after stirring 3. 10g rusty nails in the dilute sulfuric acid reaction fully sufficient to produce hydrogen, 0.2g, mass fraction calculation in the mixture of rust. Choose the 4. to the mixture of copper oxide and iron powder, add a certain amount of dilute sulfuric acid, after the reaction stops, filter, remove the insoluble matter. It may include adding a piece of iron to the filtrate without seeing any change in the iron sheet. The filtered insoluble substance must contain, and must be contained in the filtrate, it is not likely to contain. . Chem