2012年9月中国第一艘航空母舰“辽宁号”交付海军,中国海军从此迈入航母时代.(1)航母建造中使用了大量

2025年04月10日 02:56
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网友(1):

(1)钢铁生锈是铁与水分、氧气共同作用的结果.
(2)钛具有耐酸、耐碱的性质,镁的活动性排在H前面,可以用盐酸或硫酸将过量的镁除去.
(3)A、明矾只能吸附不溶于水的固体颗粒,加明矾不能使海水中的可溶性盐例氯化钠沉淀而淡化,故A错误;
B、可以利用太阳能能将海水蒸馏,从而实现海水淡化,故B正确;
C、活性炭只能吸附一些色素异味和小颗粒,不能淡化海水,故C错误;
D、可以将海水通过一种高分子膜,水分子能通过这种膜而其他离子不能通过,从而实现海水淡化,故D正确.
(4)“辽宁”号是一艘常规动力航空母舰,使用的燃料是从石油中提炼的重油,重油含碳量高,此外还含一定量的硫,写出硫燃烧的化学方程式为S+O2

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SO2
故答案为:(7分)(1)氧气和水(1分)  (2)盐酸(稀硫酸)(2分)   (3)AC (2分)
(4)S+O2
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SO2 (2分)

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