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2015中考化学专题复习课件第3课时 溶液的形成 溶解度

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中考化学总复习 第3课时溶液的形成溶解度 溶液的形成课件
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To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 第3课时 溶液的形成 溶解度 考 点 聚 焦考 点 聚 焦 归 类 示 例归 类 示 例 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 第3课时┃ 溶液的形成 溶解度 考 点 聚 焦 考点聚焦 归类示例 考点1 溶液 1.概念:指______________物质分散到_________物质 里,形成的均一的、稳定的混合物。 2.特征:均一性、稳定性。 一种或几种 另一种 ①均一、稳定的液体并不一定是溶液。如水、酒 精等。 ②溶液不一定都是无色的。如硫酸铜溶液呈蓝色,氯化 铁溶液呈黄色等。 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 3.组组成:由________、________组组成。被溶解的物质质叫 作__________,能溶解其他物质质的物质质叫作________。 第3课时┃ 溶液的形成 溶解度 溶剂 溶质 溶剂 溶质 考点聚焦 归类示例 4.形成条件:可溶性物质质与溶剂剂混合。如食盐盐与水混合、碘 与酒精混合等。 ①溶液通常根据溶质质名称来命名,若溶剂剂不是 水,还还需指出溶剂剂的名称。例如,氯氯化钠钠溶液、蔗糖溶 液、碘的酒精溶液(简简称碘酒)等。 ②溶液中未溶解掉的部分不能视为视为 溶质质。 ③一种溶液中的溶质质可以有多种,但溶剂剂只有一种。 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 物质质溶解时时通常伴随有吸热热、放热现热现 象。如________溶 解时时会吸热热,表现为现为 溶液的温度降低;________溶解时时会 放热热,表现为现为 溶液的温度升高。 第3课时┃ 溶液的形成 溶解度 考点2 溶解的现象 氢氧化钠 硝酸铵 考点聚焦 归类示例 溶液的质质量等于溶质质质质 量与溶剂质剂质 量之和,但溶 液的体积积不一定等于溶质质体积积与溶剂剂体积积之和。 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 第3课时┃ 溶液的形成 溶解度 考点3 溶液的应用 溶液的应用比较广泛,主要有以下几个方面: (1)在溶液中进行化学反应,可使反应速率变_____; (2)动、植物对养料的运输、吸收只有在________的环境 中才能进行; (3)医疗上的针剂通常配成溶液以方便使用; (4)利用物质溶解时的吸热、放热现象,可对物质进行鉴 别等; (5)利用物质溶解后溶液的凝固点降低,可清除公路上的 冰雪等。 溶液 快 考点聚焦 归类示例 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 第3课时┃ 溶液的形成 溶解度 考点4 乳化作用 当在植物油中加入洗涤剂后,植物油就被分散成无数细 小的液滴,而不能聚集成大的油珠,这种现象被称为______ 。肥皂、洗发水等都具有乳化作用。 乳化 考点聚焦 归类示例 乳化与溶解不同,乳化是将难难溶性液体物质质分 散成细细小的液滴,而溶解是将可溶性物质质分散成分子、 离子等。 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency and raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the welfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this year's deep reform 第3课时┃ 溶液的形成 溶解度 考点5 饱和溶液与不饱和溶液 1.概念:在一定温度下,向一定量溶剂里加入某种溶 质,当溶质_____________时,所得的溶液叫做这种溶质的 饱和溶液;________________的溶液,叫做这种溶质的不 饱和溶液。 2.判断方法 (1)当溶液中有固态溶质时,若固体___________,那么 该溶液是饱和的;若固体_______,那么该溶液是不饱和的 。 (2)当溶液中没有固态溶质时,向溶液中加入少量相应 的溶质,若溶质__________,则原溶液是饱和的;若溶质 __________,则原溶液是不饱和的。 继续溶解 不能继续溶解 还能继续溶解 不再减少 减少 不再溶解 考点聚焦 归类示例 To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for further promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform is still the focus of this year's “two sessions.“ Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which r
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