(4×5)ˇ3=__________(用科学记数法表示)

解释这句话：兄以动身三日即到(1)__________ (2)__________(3)__________ (4)__________(5)__________ (6)__________ 写出下列物质的化学式及分类（1）生石灰__________、__________（2）熟石灰__________、__________（3）纯碱__________、__________（4）干冰__________、__________（5）氮气__________、__________（6）盐酸__________ 时间单位转换一写初二上学期的时间单位转换 要用科学记数法的用科学记数法(1)2min=__________=____h(2)2h=__________=____min2h=__________=____s(3)30min=__________=____h30min=__________=____s(4)45min=__________=____h(5)120s= (4×5)ˇ3=__________(用科学记数法表示) 写出能实现下列变化的相应的化学方程式(1)Cu2++2OH-=Cu(OH)2↓__________(2)Fe+2H+=Fe2++H2↑__________(3)CO2+2OH-=CO32-+H2O __________(4)H++HCO3-=H2O+CO2↑__________(5)Cu2++H2S=CuS↓+2H+ __________请写清楚, 填be的适当形式一、用be的适当形式填空.1． I _________ a student．2． __________ your father a worker?Yes,he __________ ．3． They __________ in the classroom．4． This __________ an apple． 5． Where __________ my books?6． W 一元一次方程解法的一般步骤依据是：（1）去分母,依据：__________；（2）去括号,依据：__________；（3）移项,依据：__________；（4）合并同类项,依据：__________；（5）系数化为1,依据：__________ 完成下列化学方程式,并指出反应类型.（1）_____+CuSo4=Cu+______( )(2)K2O+________=__________( )(3)SO2+H2O=________________( )(4)NH4HCO3=__________+__________+___________( )(5)Na2CO3+___________=___________+NaOH( ). 根据所给的数字填写成语0+0=?__________ 1000²=100×100×100___________1×1=1 __________ 3·4 ____________1,2,5 __________ 7分钟+8分钟=1000元 ______________ 用__________,__________,好像__________.造句 若 abcd =a+b-c-d,则-3 -4 -5 -6 的值是__________. 写出两个与所给单词同类的单词（1）grandma _________ __________ (2) football ___________ ____________(3)kitten __________ __________ (4) orange _________ _________(5)green__________ __________ (6) cat foot _________ _________ 列方程解应用题步骤(1)__________(2)____________(3)找出包含未知数的____________(4)__________(5)____________(6) 1.写出与下列词语同类的两个词语（1）滚烫的 生硬的 __________ __________（2）香喷喷 甜蜜蜜 __________ __________（3）雪白雪白 滚圆滚圆 __________ __________ （4）驰名中外 举世瞩目 __________ __________2 擅长做某事__________=__________用英语怎么说擅长做某事__________=__________Tony的妈妈是做什么的?__________=__________=__________为什么不搭乘的士?__________=__________忙于做某事__________=__________本人初一… 用待定系数法求反比例函数解析式的一般步骤： （1）__________ （2）__________（3）__________ 根号下4×9×25=__________ Complete the questions（十分钟在线等）1 You like David beckham,__________?2 It looks like rain,__________?3 The bus is always late,__________?4 Simon doesn't like violin music,__________?5 Their prices are very low,__________?6 The film was r