Sir years later, Radice found himself a patient atSt. Barnabas, infected with COVID-19. He couldn'tbelieve he was looking up into the eyes of the man whoseconfidence hed restored. At this time when doctorscouldn't help but be anxious, Pitera, once surrounded byworry, said he was able to deal with the stress far betterthan he would have before his heart attack. For Radicethose words "Not on my watch" were exactly what heneeded to hear. Slowly, day by day, his condition wasgetting better and better. Radice began his own exerciseprogram.Pitera visited as often as he could to cheer onRadices progress. Nearly 20 days after he wasadmitted, Radice was allowed to leave the hospital. Piteracame to his room to say goodbye."You saved my life,Radice told him. "You saved my life, " Pitera answeredback. Hospital employees lined the hallwaysapplauding, as Radice was wheeled to his wife waitingoutside."We have a lot of tough days ahead of usPitera said."Dan boosted a lot of people,s spirits justwhen we needed it

(1)Na[(](2分)(2)2H2O2MnO),2H2O+O2↑(3分)(3)2SO2+化剂25O(3分)(4)NaOH(2分) NacIo(或NaHS)(2分)【解析】由题意可知,X、Y、Z、M、N分别为H、O、Na、S,Cl。(1)NaC的电子式为NaC时。(2)H与O形成的10电子分子是H2O,形成的18电子分子是H2O2,H2O2发生分解反应转化成H2O的化学方程式为2H2O22H2O+O2↑。(3)由图可知,SO2与O2反应生成SO3,化学方程式为2sO2+O2化钢2SO(4)A能抑制水的电离,且组成元素的原子个数之比为1:1:1,则A是NaOH;B能促进水的电离,则B是能水解的盐,且组成元素的原子个数之比也为1:1:1,则B是 NaClo或NaHS

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