(完整版)初三化学酸碱盐知识点归纳及练习题

本专业培养掌握生物技术及其产业化的科学原理、工艺技术过程和工程设计等基础理论、基本技能，能在生物工程和生物技术领域从事设计、生产、管理和新技术研究、新产品开发的工程技术人才。IsignedwiththeBankoftheqiluBankloancontract(contract)conventions,andIusescheme,Iwouldrequesttheloans(inwords)untilIopenedpersonalsettlementaccountwithyourBank(account),usesloanfor。Loanoperation,businessunitname:accountnumber:loanfundsfromthesepersonalsettlementaccountintotheaccountofapayment.Loansinaccordancewiththefollowingpaymentmethodstopay.One,lendertrusteepayment.DelegateqiluBankloanfundsoftheborrowertomeetthestipulationofthecontractthefollowingborrowers,counterparties,commitmentfunds,regulatorycompliance,legal,andwillingtotakethepaydisputes,lossandotherconsequencesofthedelegate.PayeeaccountnumberBanknameamountpurposeII,borrowersownpaymentmethods.QiluBankaccordingtotheborrower'swithdrawalrequesttoloanfundsdisburseddirectlytotheborrower'saccount,andindependentlybytheborrowerpaymentstoborrowerswhomeetthestipulationofthecontracttransactions.Iguaranteetoyourbankcontractsandotherproveofmaterialsubmittedbyrealandeffective.Wheninaccordancewithonepayment,Iagreewiththeaboveaccountwithyourbankloanfundsthatarenotusedforstoppaymentmanagement,stoppaidconfirmedbookrecordstablesingle13:liftedcheckpaynoticerecordstablesingle14:personalloanaheadofrepaymentapplicationacceptedtableRecordstablesingle15:loanlinesopened/cancellationapplicationapprovaltablerecordstablesingle16:qilucardawardletterselfloanlinescancellationapplicationapprovaltablerecordstablesingle17:loanlinescancellationapplicationapprovaltablerecordstablesingle18:qiluBankloanurgedreceivednoticerecordstablesingle19:arrived(quality)betrealrightprovedoutlibrarylistingrecordstablesingle20:housingmortgagerightcancellationprovedrecordstablesingle21:personalpledgeloanrepaymentcommitmentletter11.scheduleSpontaneousdateofpromulgationofthispractice,thisprocedureisissuedpriortotheimplementationoftherelevantprovisionsareinconsistentwiththisregulation,issubjecttothisregulation.TheriskmanagementDepartmentisresponsiblefortheinterpretationandamendmentofproceduresbytheheadoffice.Breakthroughtherestrictionsimposedbythispractice,shouldsubmitfileexplanationsauthoritiesfileexplanationdeemednecessaryandsubmittedtotheHeadOfficeoftheloanReviewCommitteeforapproval.Recordform1:personalloancustomerconversationtranscripttomegiventheloanapplicantbankpersonalloanapplications,accordingtoqiluBankpersonalloaninterviewsregulationsandinterviewsonthefollowingissueswiththeborrowerandtheguarantor,pleaserespond,andensurecontentauthenticity.1,yourpersonalloanapplicationmaterialsmustbesubmittedtotheqiluBankistrue,otherwiseyoushouldbearthecorrespondinglegalresponsibility.Inthisregard,doyouunderstand?Yes()No()2,youapplyforpersonalloansamountingtomillionofperiodofmonths,youdecidetotaketherepaymentoptionsare:dueaone-offdebt(),monthlyinterest,to...QiluBank:初三化学酸碱盐知识点归纳常见的酸和碱一、酸碱指示剂1．酸碱指示剂(简称：指示剂)能跟酸或碱的溶液起作用而显示不同的颜色。常见的有：石蕊溶液、酚酞溶液。2．变色规律：石蕊溶液遇酸溶液变成红色，遇碱溶液变成蓝色。酚酞溶液遇酸溶液不变色，遇碱溶液变成红色。3.二氧化碳通入紫色的石蕊试液中，(1)．溶液由紫色变成红色。(2)．二氧化碳溶于水生成了碳酸，是碳酸改变了溶液的颜色。4.用酸碱指示剂检验溶液的酸碱性的方法：(1)取少量该溶液，滴入几滴石蕊试液，若溶液呈现红色，则说明该溶液为酸性溶液。(2)取少量该溶液，滴入几滴石蕊试液，若溶液呈现蓝色；或者滴入几滴无色的酚酞试液，若溶液呈现红色，则说明该溶液为碱性溶液。二、几种常见的酸1．盐酸是HCl（气体）的水溶液。纯净的浓盐酸是无色。盐酸具有挥发性，浓盐酸在空气里会形成白雾，这是因为从浓盐酸里挥发出来的氯化氢气体跟空气里的水蒸气接触，形成盐酸小液滴的缘故。2．浓硫酸：无色无味液体。(1)有吸水性，在实验室中常用它作干燥剂。(2)浓硫酸具有强腐蚀性（脱水性），使用时必须十分小心。它能夺取纸张、木材、布料、皮肤里的水分，生成黑色的炭。(3)稀释浓硫酸的正确操作：将浓硫酸沿着烧杯壁缓慢地注入盛有水的烧杯里，用玻璃棒不断搅动。(4)如果不慎将浓硫酸沾到皮肤或衣服上，应立即用大量水冲洗，然后涂上3％～5％的碳酸氢钠溶液。4．酸有一些相似的化学性质(1)能使酸碱指示剂显示不同的颜色。(2)能与多种活泼金属反应，生成氢气。Fe+2HCl=FeCl2+H2↑Zn+H2SO4=ZnSO4+H2↑2Al+6HCl=2AlCl3+3H2↑2Al+3H2SO4=Al2（SO4）3+3H2↑(3)能与某些金属氧化物反应，生成水。铁锈+盐酸：Fe2O3+6HCl====2FeCl3+3H2O（黄色溶液）；铁锈+硫酸：Fe2O3+3H2SO4====Fe2(SO4)3+3H2O（4）酸与碱反应（写化学方程式)盐酸中和氢氧化钠：NaOH+HCl=NaCl+H2O（中和反应）如图所示，在烧杯中加入10mL氢氧化钠溶液，滴入几滴酚酞溶液。再用滴管慢慢滴入稀盐酸，并不断搅拌溶液，至溶液颜色恰好变成无色为止。①．中和反应：酸与碱作用生成盐和水的反应。②．盐：在水溶液中能解离出金属离子和酸根离子的化合物。本专业培养掌握生物技术及其产业化的科学原理、工艺技术过程和工程设计等基础理论、基本技能，能在生物工程和生物技术领域从事设计、生产、管理和新技术研究、新产品开发的工程技术人才。IsignedwiththeBankoftheqiluBankloancontract(contract)conventions,andIusescheme,Iwouldrequesttheloans(inwords)untilIopenedpersonalsettlementaccountwithyourBank(account),usesloanfor。Loanoperation,businessunitname:accountnumber:loanfundsfromthesepersonalsettlementaccountintotheaccountofapayment.Loansinaccordancewiththefollowingpaymentmethodstopay.One,lendertrusteepayment.DelegateqiluBankloanfundsoftheborrowertomeetthestipulationofthecontractthefollowingborrowers,counterparties,commitmentfunds,regulatorycompliance,legal,andwillingtotakethepaydisputes,lossandotherconsequencesofthedelegate.PayeeaccountnumberBanknameamountpurposeII,borrowersownpaymentmethods.QiluBankaccordingtotheborrower'swithdrawalrequesttoloanfundsdisburseddirectlytotheborrower'saccount,andindependentlybytheborrowerpaymentstoborrowerswhomeetthestipulationofthecontracttransactions.Iguaranteetoyourbankcontractsandotherproveofmaterialsubmittedbyrealandeffective.Wheninaccordancewithonepayment,Iagreewiththeaboveaccountwithyourbankloanfundsthatarenotusedforstoppaymentmanagement,stoppaidconfirmedbookrecordstablesingle13:liftedcheckpaynoticerecordstablesingle14:personalloanahead