'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 2022年九上化学必须记住的化学方程式(34个)...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 初中必背的化学方程式有哪些:较难系列 一般是氧气的制取和一些金属在氧气中燃烧或...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 初中化学方程式:化合物与氧气的反应 1. 甲烷在空气中燃烧:CH4 + 2O2 点燃 CO2 + 2H2O 2....
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 初中化学方程式:氧气的性质 (1)单质与氧气的反应:(化合反应) 1. 镁在空气中燃烧:...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 木炭在空气中燃烧(化合反应) 充分燃烧:C+O2=CO2 不充分燃烧:2C+O2=2CO 现象:在空气中发...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 水通电分解(分解反应) 2H2O=2H2+O2 现象:通电后,电极上出现气泡,气体体积比约为1:...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 澄清石灰水中通入二氧化碳气体(复分解反应) Ca(OH)2+CO2=CaCO3+H2O 现象:石灰水由澄清变浑...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 置换反应 1、铁和硫酸铜溶液反应:Fe+ CuSO4 == FeSO4 +Cu 2、锌和稀硫酸反应(实验室制氢气...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 分解反应 1、实验室用双氧水制氧气:2H2O2 MnO2 2H2O +O2 2、加热高锰酸钾:2KMnO4 加热 K2M...
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 初中常见化学方程式归纳 分页标题 '); (window.slotbydup=window.slotbydup || []).push({ id: '8...