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Alkena : Rumus Molekul dan Tata Nama Senyawa

Alkena : Rumus Molekul dan Tata Nama Senyawa – Sebelumnya kita sudah belajar secara detail mengenai hidrokarbon yang pertama yaitu Alkana. Kali ini kita mulai masuk ke materi selanjutnya, yaitu Alkena. Alkena adalah senyawa tak jenuh atau senyawa hidrokarbon yang memiliki ikatan rangkap dua. Bagaimana rumus molekul Alkena dan nama senyawanya? Mari kita belajar kembali.

Alkena : Rumus Molekul dan Tata Nama Senyawa

WAJIBA BACA : ALKANA

semangat Alkena : Rumus Molekul dan Tata Nama Senyawa Isomer dan Sifat Alkana | Kimia SMA Kelas X Semester 2

Rumus molekul Alkena adalah CnH2n. Untuk Alkena, n dimulai dari 2, C2H4 bernama etena. Untuk lebih lengkap mengenai rumus molekul Alkena dan nama, dapat dilihat dari tabel dibawah ini :

Alkena Alkena : Rumus Molekul dan Tata Nama Senyawa

Rumus molekul dan rumus struktur :

Nama : Etena
Rumus molekul : C2H4
Rumus struktur : CH2 = CH2

Nama : Propena
Rumus molekul : C3H6
Rumus struktur : CH2 = CH – CH3

Pada alkana, ikatan antara C dan C yang lain adalah ikatan tunggal, sehingga termasuk hidrokarbon jenuh.

Pada alkena, ikatan antara C dan C terdapat ikatan rangkap dua, sehingga termasuk hidrokarbon tak jenuh.

Alkena : Rumus Molekul dan Tata Nama Senyawa

Tata Nama Alkena

a. Dalam alkana yang telah kita pelajari sebelumnya, nama-nama senyawa diakhiri dengan -ana. Sedangkan untuk alkena, maka nama senyawa berakhiran -ena. Contoh : etena, propena, butena dll.

b. Rantai utama adalah rantai yang paling panjang dan mengandung ikatan rangkap dua. Pemberian nomor dimulai dari atom C yang paling dekat dengan ikatan rangkap dua.

Tata Nama Senyawa Alkena Alkena : Rumus Molekul dan Tata Nama Senyawa

c. Pada senyawa alkena yang bercabang, tata nama senyawa dimulai dari nomor + nama CABANG (alkil), tanda strip (-), nomor tempat ikatan rangkap dua berada, tanda strip (-) dan terakhir nama rantai terapanjang atau rantai utama.

Alkena Rumus Molekul dan Tata Nama Senyawa Alkena : Rumus Molekul dan Tata Nama Senyawa

Ok, sementara cukup itu dulu ya. Jika ada pertanyaan, silahkan kunjungi facebook saya. Atau bertanya melalui kontak yang berada di header. Semangat belajar ya semangat Alkena : Rumus Molekul dan Tata Nama Senyawa

Alkena : Rumus Molekul dan Tata Nama Senyawa

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Seorang laki-laki sederhana dari Kota Gaplek, Wonogiri. Pernah belajar di Universitas Negeri Semarang dan kini mengajar Kimia di SMA Islam Al Azhar 7 Solo Baru, Sukoharjo. Selain mengabdi di dunia pendidikan, saya juga aktif di dunia Internet Marketing. Salam Sukses dari Wonogiri View all posts by DaddySunSek →

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