... Giặt bằng x phòng trong nước cứng sẽ tạo ra các muối không tan, các chất này b m trên bề m t vải sợi l m quần áo mau m c nát.- Nước cứng gây tác hại cho các nghành sản xuất, như tạo ra các ... sản xuất xi m ng, đất đèn, chất độn cho vật liệu cao su 3. Canxi sunfat, CaSO4a. Tính chất: - Canxi sunfat là chất rắn, m u trắng, ít tan trong nước.- Tuỳ theo lượng nước kết tinh trong muối ... sự xm thực của nước m a đối với đá vôi.Chiều (2): giải thích sự tạo thành thạch nhũ trong các hang động, sự tạo thành cặn đá vôi trong m đun nước.b. Ứng dụng:CaCO3 dùng l m vật liệu x y...
... dầu m b m trên chi tiết m y trước khi sơn, tráng kimloạiM T SỐ HỢPCHẤT QUAN TRỌNG CỦA KIM LOẠI KI M Thứ bảy, 01 Tháng 8 2009 06:53 Thầy Trung Hiếu I. NATRI HIĐROXIT, NaOH1. Tính chất: - ... dịch axit: Tạo muối và nước.NaOH + HCl → NaCl + H2Oc. Tác dụng với oxit axit: tạo muối trung hoà hoặc muối axit.NaOH + CO2 →NaHCO32NaOH + CO2→Na2CO3 + H2Od. Tác dụng với kim loại, ... Al(OH)3 → Na[Al(OH)4]e. Tác dụng với dung dịch muối: Tạo muối m i và bazơ m i2NaOH + CuSO4 → Na2SO4 + Cu(OH)2f. Tác dụng với m t số phi kim: 2NaOH + Cl2 →NaCl + NaClO + H2O2. Điều...
... sunfua kimloại thành oxit kim loại. Sau đó khử oxit kimloại bằng chất khử thích hợp. + Đối với những kimloại khó nóng chảy nhuwCr, người ta dùng Al l mchất khử.+ Với những kimloại k m hoạt ... kimloại ki m: - 2MX 2M + X 2Hoặc điện phân nóng chảy các hiđroxit kimloại ki m Điều Chế Kim Loại Chủ nhật, 12 Tháng 7 2009 19:45 Thầy Trung HiếuI. NGUYÊN TÁC ĐIỀU CHẾ KIM LOẠIKhử ion kim ... không bị ăn m n - Kimloại Mg được dung để chế tạo những hợpkim có đặc tính cứng, nhẹ, bền Bột Mg trộn với chất oxi hoá dung để chế tạochất chiếu sáng ban đ m. - Kimloại Ca dung l mchất khử...
... TÍNH CHẤT HÓA HỌC CỦA HỢP CHẤT KIMLOẠI KI M, KIMLOẠI KI M THỔ. Kim loại ki m (Li, Na, K,Rb, Cs) Kim loại ki m thổ(Be, Mg,Ca,Sr,Ba)HidroxitMuối Câu 7: nung x mol Fe trong không khí m t ... thành Fe2 +b Cu kimloại có oxihoá k m hơn sắt kim loại c Cu kimloại có tính khử m nh hơn sắt kim loại d Fe kimloại bị Cu đẩy ra khỏi dung dịch muốiCâu 31/ Cho m t m nh Ba kimloại dư vào dung ... kimloại ki m và kimloại ki m thổ.– Viết các PTHH so sánh tính khử m nh của kimloại ki m với kimloại ki m thổ; so sánh tính baz của oxit, hidroxit cũng như tính chất hóa học của m t số muối...
... 6: KIMLOẠI KI M, KIMLOẠI KI M THỔ, NH M. Bài 25 : Kimloại ki m và hợpchất quan trọng của kimloại ki m A . M c tiêu 1. Kiến thức .+Học sinh n m được vị trí, cấu tạo nguyên tử ,tính chất ... khử m nh của kimloại ki m .2. Kĩ năng .+ Rèn cho học sinh cách l m thí nghi m đơn giản về kimloại ki m. + Tập cho học sinh cách nhận biết kimloại ki m .+ Giải bài tập về kimloại ki m 3. ... chất của kimloại ki m + Học sinh biết được tính chất ứng dụng của m t số hợpchất quan trọng của kim loại ki m .+ Học sinh biết được nguyên tắc và phương pháp điều chế kimloại ki m .+ Học...
... – KIM LOẠI KI M THỔ - NH M Bài 25. KIMLOẠI KI M VÀ HỢPCHẤT QUAN TRỌNG CỦA KIMLOẠI KI M A. KIMLOẠI KI M B. M T SỐ HỢPCHẤT QUAN TRỌNG CỦA KIM LOẠI KI M IV – ỨNG DỤNG, TRẠNG THÁI THIÊN NHIÊN ... Nấu x phòng, chế ph m nhu m, tơ nhân tạo, tinh chế quặng nh m trong công nghiệp luyện nh m và dùng trong công nghiệp chế biến dầu m . Chương 6. KIMLOẠI KI M – KIM LOẠI KI M THỔ - NH M Bài ... ki m có năng lượng ion hoá nhỏ, vì vậy kimloại ki m có tính khử rất m nh. Tính khử tăng dần từ Li → Cs. M - 1e- → M ++ Là kimloại có tính khử m nh nhất trong các kim loại. + Trong các hợp...
... Tiết 42 : KIMLOẠI KI M V HỢPCHẤT QUAN TRỌNG CỦA KIMLOẠI KI M (T2) I. M C TIU: 1. Kiến thức: HS biết được tính chất và ứng dụng m t số hợp chất quan trọng của kimloại ki m. 2. Kĩ ... 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... ki m. 2. Kĩ năng: - L m một số thí nghi m đơn giản về hợpchất của kim loại ki m. - Giải bi tập về hợpchất của kimloại ki m. 3. Thái độ: Cẩn thận trong cc thí nghi m hố học. II. CHUẨN...
... – Tiết 43 : KIMLOẠI KI M THỔ V HỢPCHẤT QUAN TRỌNG CỦA KIMLOẠI KI M THỔ(T1) I. M C TIU: 1. Kiến thức: HS biết: - Vị trí, cấu tạo nguyn tử, tính chất của kimloại ki m thổ. - Nguyên ... tính chất vật lí của kim loại ki m thổ như bên. GV ?: Theo em, vì sao tính chất vật lí của cc kimloại ki m thổ lại biến đổi không theo m t quy luật nhất định giống như kim loại ki m ? ... 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/m6 Pf75+fnV0+bzWZRFEVRtNvtRqNhP6AWAFALVOFP3a1fM03T4XDY7XZbrZYNw5/hnUgAwAZYpEKWZU+ePLEN+GPqVgAA3LqVb2cdHR1dXFwsfr54G1Kn08myzNuQQC0AAFttPB5fXFzkeT4YDF6+fOkdR3DnfG4BYAvOeuc8G6Isy/v379fr/jcT1AIAagGAv5tPOQMAAGoBAABQCwAAgFoAAADUAgAAoBYAAAC1AAAAqAUAAEAtAAAAagEAAFALAACAWgAAAFALAACAWgAAANQCAACgFgAAALUAAACoBQAAQC0AAABqAQAAUAsAAIBaAAAA1AIAAKAWAAAA1AIAAKAWAAAAtQAAAKgFAABALQAAAGoBAABQCwAAgFoAAADUAgAAoBYAAAC1AAAAqAUAAAC1AAAAqAUAAEAtAAAAagEAAFALAACAWgAAANQCAACgFgAAALUAAACoBQAAQC0AAACoBQAAQC0AAABqAQAAUAsAAIBaA...
... bản – Tiết 44 : KIMLOẠI KI M THỔ V HỢPCHẤT QUAN TRỌNG CỦA KIMLOẠI KI M THỔ(T2) I. M C TIU: 1. Kiến thức: HS biết: Nước cứng là gì ? Nguyn tắc v cc phương pháp l mmm nước cứng. ... 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... học minh hoạ tính chất hoá học của kimloại ki m và m t số hợpchất của chúng, viết sơ đồ điện phân điều chế kimloại ki m. Tính thành phần phần tr m về khối lượng muối kimloại ki m trong ... ki m trong hỗn hợp phản ứng. B. Trọng t m Đặc đi m cấu tạo nguyên tử kimloại ki m và các phản ứng đặc trưng của kimloại ki m Phương pháp điều chế kimloại ki m Tính chất hoá học cơ ... Bài m i: HOẠT ĐỘNG CỦA THẦY VÀ TRÒ NỘI DUNG KIẾN THỨC Hoạt động 1 GV cho HS quan sát m t m u B. M T SỐ HỢPCHẤT QUAN TRỌNG CỦA KIMLOẠI KI M I – NATRI HIĐROXIT 1. Tính chất...
... tr m về khối lượng muối trong hỗn hợp phản ứng. B. Trọng t m Đặc đi m cấu tạo nguyên tử kimloại ki m thổ và các phản ứng đặc trưng của kim loại ki m thổ Phương pháp điều chế kimloại ... 85,49% & 14,51% D.17,6% & 82,4% 4. Cho 2 g m t kimloại nh m IIA tác dụng hết với dung dịch HCl tạo ra 5,55g muối clorua. Kimloại đó là kimloại nào sau đây ? A. Be B. Mg C. Ca ... giống như kimloại ki m ? loại ki m thổ tuy có cao hơn các kimloại ki m nhưng vẫn tương đối thấp. - Khối lượng riêng nhỏ, nhẹ hơn nh m (trừ Ba). Độ cứng cao hơn các kimloại ki m nhưng vẫn...