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1、初中常見相對原子質(zhì)量及相對分子質(zhì)量相對原子質(zhì)量名稱符號相對原子質(zhì)量名稱符號相對原子質(zhì)量名稱符號相對原子質(zhì)量氫H1鋁Al27鉄Fe56氦He4硅Si28銅Cu63.5碳C12磷P31鋅Zn65氮N14硫S32鋇Ag108氧O16氯Cl35.5銀Ba137氟F19氬Ar40金Pt195氖Ne20鉀K39鉑Au197鈉Na23鈣Ca40汞Hg201鎂Mg24錳Mn55碘I127相對分子質(zhì)量物質(zhì)化學式相對分子質(zhì)量物質(zhì)化學式相對分子質(zhì)量一氧化碳CO28氫氧化鉀KOH56四氧化三鐵Fe3O4232碳酸鈣CaCO3100氧化鋁Al2O3102硫酸亞鐵FeSO4152鹽酸HCl36.5碳酸鈉Na
2、2CO3106氫氧化鈣Ca(OH)274硫酸銅CuSO4160硫酸鈣CaSO4136硝酸銨NH4NO380氯化亞鐵FeCl2127過氧化鈉Na2O278硫酸鈉Na2SO4142氯化銨NH4Cl53.5氯化銅CuCl2135二氧化硫SO264硫酸鋅ZnSO4161氧化鈣CaO56氯酸鉀KClO3122.5氧化亞鐵FeO72過氧化氫H2O234水H2O18氧化鎂MgO40碳酸H2CO362二氧化碳CO244氫氧化銅Cu(OH)298三氧化二鐵Fe2O3160氯化鈣CaCl2111五氧化二磷P2O5142氯化鐵FeCl3162.5硫酸H2SO498氯化鈉NaCl58.5氫氧化鈉NaOH
3、40氯化鉀KCl74.5氧化銅CuO80氯化鋅ZnCl2136氫氧化鎂Mg(OH)258高錳酸鉀KMnO4158一般現(xiàn)在時、現(xiàn)在進行時、一般將來時、一般過去時專項練習?一單項選擇題1._____he_____totheparkat6:30inthemorning?No,he____.A.Does;goes;doesB.Does;go;doesn’tC.Does;go;does2.Whatcolour_____you_____thisbookcase?I_____itpink.A.?are;goingtopaint;amgoingtopaintB.?do;paint;paintC.
4、?did;paint;painted?3.Timalways_____apictureathome.He_____acarnow.A.draws;isdrawingB.draw;drawC.draws;draw4.Sheusually_____herfriends.Theyoften_____tea.A.see;drinkB.sees;drinksC.sees;drink5.Heusually_____thedishesatnight,buttonighthe_____clothes.A.wash;washB.washes;isgoingtowashC.iswashing;was
5、hes6.Mr.Greenusually_____hisnewspaperintheevening,butheandhiswife_____televisionyesterdayevening.A.reads;watchesB.reads;isgoingtowatchC.reads;watched7.Wherearethemanandthewoman?They_____nearthetree.A.sitB.satC.aresitting8._____yourpenpal_____diving?No,he_____.He______writingstories.A.Does;lik
6、e;doesn’t;likesB.?Does;likes;doesn’t;likeC.Do;like;don’t;likes9._____you_____fishingyesterday?No,we_____.A.Does;go;doesn’tB.Did;go;didn’tC.Do;go;don’t10.Openthewindow,please.Look!He_____itA.opensB.isopenningC.isopening11.Iusually_____somemilkeveryday.ButI_____coffeeyesterday.A.drink;drankB.is
7、drinking;drinkC.drank;amdrinking12.Mr.Greenoften_____hisnewspapersatnight.Buthe_____aninterestingbooktonight.A.reads;readsB.reads;readC.reads;isgoingtoread13.Theoldman_____playingsportsinthepark.He_____morningexercisenow.A.likes;isdoingB.like
