Lớp 12

Các bài giảng, lý thuyết, chuyên đề và bài tập đề thi các môn học từ Toán, Văn, Anh, Lý, Hoá, Sinh, Sử, Địa, GDCD,… lớp 12 được soạn kĩ lưỡng và dễ hiểu nhất trên Lecttr

Trao đổi vật chất và năng lượng trong hệ sinh thái

Written by thieungocvy Tháng Ba 12, 2021

Chương 7. Sắt và một số kim loại quan trọng

Bài 31: Sắt

Written by Callie Tháng Ba 12, 2021

Chương 6: Kim loại kiềm/Kim loại kiềm thổ/Nhôm

Bài 27: Nhôm và hợp chất của nhôm

<img alt='' src='https://secure.gravatar.com/avatar/d056fca4b299856ba544b52806e3d568?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/d056fca4b299856ba544b52806e3d568?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by nnquin Tháng Ba 12, 2021

Bài 26: Kim loại kiềm thổ và hợp chất quan trọng của kim loại kiềm thổ

<img alt='' src='https://secure.gravatar.com/avatar/d056fca4b299856ba544b52806e3d568?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/d056fca4b299856ba544b52806e3d568?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by nnquin Tháng Ba 12, 2021

Chuyên đề: Tán sắc ánh sáng

<img alt='' src='https://secure.gravatar.com/avatar/291e1e01cef4461af68e1d90a02585af?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/291e1e01cef4461af68e1d90a02585af?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by Nguyentrantunhan Tháng Ba 10, 2021

Chuyên đề: Giao thoa ánh sáng đơn sắc

<img alt='' src='https://secure.gravatar.com/avatar/291e1e01cef4461af68e1d90a02585af?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/291e1e01cef4461af68e1d90a02585af?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by Nguyentrantunhan Tháng Ba 10, 2021

Chuyên đề: Điện phân

Written by Anatasia Tháng Ba 8, 2021

Cách để phân biệt Some và Any (kèm bài tập vận dụng)

<img alt='' data-srcset="https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" height='60' width='60' data-src='https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' class='avatar avatar-60 photo avatar-img lazyload' src='data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==' /><noscript><img alt='' src='https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by ngoclinhbui Tháng Ba 7, 2021

Chuyên đề ngữ pháp: Sự phối hợp thì (The Sequence of Tense)

<img alt='' data-srcset="https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" height='60' width='60' data-src='https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' class='avatar avatar-60 photo avatar-img lazyload' src='data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==' /><noscript><img alt='' src='https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by ngoclinhbui Tháng Ba 7, 2021

Câu điều kiện (Conditional Sentences) kèm bài tập có lời giải

<img alt='' data-srcset="https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" height='60' width='60' data-src='https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' class='avatar avatar-60 photo avatar-img lazyload' src='data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==' /><noscript><img alt='' src='https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=60&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g' srcset="https://secure.gravatar.com/avatar/70f1b976d3d44e7ce95cdb1a85deb18c?s=120&d=https%3A%2F%2Flecttr.com%2Fwp-content%2Fuploads%2F2019%2F07%2Fcropped-lecttr-icon-square-270x270.png&r=g 2x" class='avatar avatar-60 photo avatar-img' height='60' width='60' />

Written by ngoclinhbui Tháng Ba 7, 2021