Quiz 1:   Fullscreen Mode Chemistry: Bonding, Reaction Rates, and Equilibrium Complete Chemistry Theory: Bonding, Reaction Rates, and Equilibrium Section 1: Ionic and Covalent Bonding Atomic Structure Atoms consist of three fundamental particles: Protons : Positively charged particles in the nucleus Neutrons : Neutral particles in the nucleus Electrons : Negatively charged particles orbiting the nucleus Nucleus Electron Orbits Ion Formation Cation Formation: Atom → Cation + e⁻ Anion Formation: Atom + e⁻ → Anion Na⁺ Cation + Cl⁻ Anion ...

Quiz 1:   Fullscreen Mode Chapter 12: Light Physics - Complete Guide Chapter 12: Light Physics - Complete Theory and Formulas Introduction to Light Light is a form of electromagnetic wave that allows us to see objects around us. Objects can be classified as: Luminous objects: Produce their own light (e.g., lamp, fire) Non-luminous objects: Reflect light from other sources (e.g., wall, picture) 12.1 Reflection of Light The Law of Reflection Two fundamental principles: The angle of incidence (i) equals the angle of reflection (r) The incident ray, reflected ray, and normal all lie in the same plane Law of Reflection Formula: i = r ...

Quiz 1:   Fullscreen Mode Acids, Bases, and Salts Chapter 12: Acids, Bases, and Salts Welcome, budding chemists! Today, we\'re going to explore the world of acids, bases, and salts. These chemical compounds are everywhere, playing crucial roles in nature and in our daily lives. Have you ever heard of Lake Natron in northern Tanzania? It\'s an incredible place, but its water is so corrosive that it can burn your skin! Why is it so harsh? Because it\'s highly alkaline, meaning it contains strong bases. This high alkalinity is due to the presence of salts like sodium carbonate and sodium hydrogen carbonate. Despite its harsh conditions, Lake Natron is a vital breeding ground for the lesser flamingos. The alkalinity even helps keep most predators away. This real-world example shows us just how powerful and important these substances can be! Let\'s start by breaking down each of these important categories. 1. Acids: The Sour and Corrosive Many ...

Quiz 1:   Fullscreen Mode Quiz 2:   Fullscreen Mode Trigonometri, Peluang dan Statistik 📊 Rangkuman Rumus Matematika SMA Trigonometri, Peluang dan Statistik Oleh: Agus Salim 📈 1. STATISTIK Statistik adalah cabang matematika yang berkaitan dengan pengumpulan, analisis, interpretasi, presentasi, dan organisasi data. Dalam konteks SMA, fokus utama adalah pada ukuran pemusatan data dan ukuran penyebaran data. 🎯 1.1 Ukuran Pemusatan Data 📊 1.1.1 Rata-rata (Mean) a. Data Tunggal x̄ = (Jumlah semua nilai data) / (Banyaknya data) Keterangan: • x̄ = rata-rata • n = banyaknya data b. Data Kelompok x̄ = (Σ(fi × xi)) / (Σfi) Keterangan: • fi = frekuensi kelas ke-i • ...

Rangkuman Rumus PAT Matematika Kelas 7 Genap Rangkuman Rumus PAT Matematika Kelas 7 Genap Penilaian Akhir Tahun (PAT) Matematika kelas 7 semester genap mencakup beberapa materi penting yang perlu dikuasai oleh siswa. Rangkuman ini menyajikan teori dan rumus lengkap dari lima topik utama yang menjadi kisi-kisi soal PAT, yaitu Perbandingan, Aritmetika Sosial, Sudut dan Garis, Statistika, dan Bangun Datar. Dengan memahami konsep dan rumus-rumus ini, diharapkan siswa dapat menyelesaikan soal-soal PAT dengan baik. 1. Perbandingan Perbandingan adalah hubungan antara ukuran-ukuran dua atau lebih objek dalam suatu kumpulan. Perbandingan dapat dinyatakan dalam bentuk pecahan atau dengan menggunakan tanda titik dua (:). Misalnya, perbandingan a dan b dapat ditulis sebagai a : b atau a/b. Dalam matematika, terdapat beberapa jenis perbandingan yang perlu dipahami. Perbandingan Senilai ...