

rumus kimia senyawa ion
Presentation
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
MERY FANGGI
FREE Resource
7 Slides • 0 Questions
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Pengertian senyawa ion
Senyawa ion adalah senyawa yang terbentuk dari ikatan ion, yaitu ikatan antara logam dan nonlogam melalui perpindahan elektron.
Logam → melepaskan elektron → menjadi ion positif (kation)
Nonlogam → menerima elektron → menjadi ion negatif (anion)
contoh:
Na (logam) + Cl (nonlogam) → Na⁺ + Cl⁻ → NaCl
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2. Langkah-langkah Menentukan Rumus Kimia Senyawa Ion
Langkah 1 – Tulis lambang unsur & muatan ionnya
Gunakan bilangan oksidasi (biloks) atau muatan ion dari masing-masing unsur.
Contoh:
Na → +1
Cl → -1
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Langkah 2 – Tukar silang muatan ion
Tukarkan angka muatan ion (tanpa tanda + atau -) menjadi indeks atom lawan.
Contoh:
Na⁺1 dan Cl⁻1
→ tukar silang muatan:
→ rumusnya Na₁Cl₁ → disederhanakan jadi NaCl
Langkah 3 – Sederhanakan jika perlu
Jika hasilnya bisa disederhanakan, gunakan bilangan terkecil
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Contoh Rumus Kimia Senyawa Ion
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Ion Poliatomik (Ion Kompleks)
Beberapa ion terdiri dari lebih dari satu atom, disebut ion poliatomik
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Contoh Senyawa Ion dengan Ion Poliatomik
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