Score A+ together

@𐙚:as soon to be teacher, nothing scares me more than this. what if i can't protect my students..

korang kalau ade ape ii soalan math yg tak faham tanye sini tau , kalau segan nak pm pun bolehhhh

tengok muka dia pun macam orang tak betul dah ☺️ semoga arwah pelajar perempuan tu ditempatkan disisi orang orang beriman dan semoga pembunuh tu dapat balasan setimpal!!!

ada sch yang dah pdpr ke?

Good mornings semua

i am

hellooo , ade yg masih terjaga ke time ii gini ?

🧪 “Chemistry Made Less Painful (SPM Edition)” (DLP) 1. Materials and Their Uses #Everything around us is made of materials. 3 main types: metals, non-metals, and compounds. Metals → shiny, strong, conduct heat & electricity (eg: iron, copper). Non-metals → dull, brittle, insulators (eg: carbon, sulfur). Compounds → formed when two or more elements combine chemically (eg: NaCl, H₂O). 💡 Question: What’s the difference between metals and non-metals? → Metals can conduct heat and electricity; non-metals can’t. 2. Atomic Structure #An atom is the smallest particle of matter. It has protons (+), neutrons (no charge), and electrons (–). Proton number = atomic number. Proton + neutron = nucleon number. Isotopes are atoms of the same element with different numbers of neutrons (eg: C-12, C-14). 💡 Question: What are isotopes? → Same element, same proton number, different neutron number. 3. Periodic Table of Elements #Arranged by increasing proton number. Group = vertical column (same valence electrons). Period = horizontal row (same number of shells). Group 1: Alkali metals — very reactive. Group 18: Noble gases — very stable. 💡 Example: Na, K, Li → alkali metals. He, Ne, Ar → noble gases. 💡 Question: Why are noble gases stable? → Because they have a full outer shell of electrons. 4. Chemical Bonds Ionic bond: transfer of electrons (metal + non-metal). Covalent bond: sharing of electrons (non-metal + non-metal). Metallic bond: sea of electrons between metal atoms. 💡 Example: NaCl → ionic bond. H₂O → covalent bond. 💡 Question: Draw the Lewis structure for water. → O in the center, shares two pairs of electrons with two H atoms. 5. Acids, Alkalis, and Salts Acid: produces H⁺ ions in water, pH < 7. Alkali: produces OH⁻ ions in water, pH > 7. Neutralization: acid + alkali → salt + water. 💡 Example: HCl + NaOH → NaCl + H₂O 💡 Question: What is produced when sulfuric acid reacts with sodium hydroxide? → Sodium sulfate and water. 6. Electrolysis Breaking down a compound using electricity. Anode (+) = positive electrode. Cathode (–) = negative electrode. Positive ions move to cathode, negative ions to anode. 💡 Example: Electrolysis of water → hydrogen (at cathode) and oxygen (at anode). 💡 Question: Which gas forms at the cathode during electrolysis of water? → Hydrogen gas. 7. Chemical Reactions Law of Conservation of Mass: total mass before = total mass after reaction. Common types of reactions: Decomposition (break down) Combination (join together) Displacement (replacement) Combustion (burning) 💡 Example: 2H₂ + O₂ → 2H₂O 💡 Question: What type of reaction is this? → Combination reaction. 8. Carbon and Its Compounds Hydrocarbons contain only carbon and hydrogen. Alkanes: single bonds, formula CnH₂n+₂ (eg: CH₄). Alkenes: have a double bond, formula CnH₂n (eg: C₂H₄). 💡 Question: What’s the difference between alkanes and alkenes? → Alkanes are saturated, alkenes are unsaturated (double bond). 9. Energy and Chemistry Exothermic reactions: release heat. Endothermic reactions: absorb heat. 💡 Examples: Exothermic → combustion, neutralization. Endothermic → photosynthesis, dissolving ammonium nitrate. 💡 Question: What type of reaction gives out heat? → Exothermic reaction. 10. Industrial Chemistry Important industrial processes: Haber Process: makes ammonia (N₂ + H₂ → NH₃). Contact Process: makes sulfuric acid. Electrolysis of brine: produces NaOH, Cl₂, and H₂. 💡 Question: What are the raw materials in the Haber Process? → Nitrogen and hydrogen.

https://t.me/getreadyspm?livestream=ff623ba76be8575532 Kelas accounts!

oke , after this kita speak up lagi ya! join class duluu

Komen

kes bunuh , ro*ol , cabul , buli dan sebagainya sangat sangat berleluasa

kepada pelajar pelajar diluar sana , terutama perempuan. jaga la diri awak. tak kisah dekat sekolah ke dekat luar. be careful. sekolah yang sepatutnya jadi tempat paling selamat selepas rumah , pada akhirnya jadi tempat yang menyeramkan.

since we're and we used to be student

i think sekarang akak kena speak up benda ni ...

banyak sangat kes yang berlaku melibatkan pelajar sekolah

lagi 💔

Sape nak join tuk roger2 kat komenn