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Ppl are asking about star formation so here is it: 1. After the big bang there was "dust" everywhere with hydrogen. 2. These dust clouds are called nebula. 3. V know that more mass creates more "deep" curvature in space time known as gravity. 4. So the concentrated dust and hydrogen particles had more gravity than others. 5. Thus they attract the dust and hydogen particles. 6. A lot of hydrogen particles came together creating immense gravity. 7. The gravity forced the hydogen atoms to fuse together and form a heavier element known as helium. 8. This fusion caused a lot of energy being produced in the form of light and heat. 9. This tremedous energy also produced presure which makes the star to go "outwards". 10. On the other hand, the gravity makes the star to go "inwards". 11. Thus a stable shape and structure of a star is created which is kind of round. 12. The star continue its life. PHASES OF ITS LIFE: 13. Eventually the fuel i

5054/22 Resource material Physics Formula sheet by Sir Hakeem https://drive.google.com/open?id=1vhyGjUo-e9OW_t45n6YQpGwW0712ilFR Flash cards https://drive.google.com/open?id=1p-pIprwzX-cL6e6gcTSDBf6wnWiwuvwp Folder for physics (Notes, past papers and ECR and some topical questions) https://drive.google.com/open?id=1Jf0mpg9uvRlnrHp3vGduZFLJ3jJUmTih Leaner guide https://drive.google.com/open?id=10ofgsz6S6s_Agjb6DEvRfkSpWm3h09Kl For this exam, your concepts should be clear, especially for light, electricity, magnetism, electromagnetism and electromagnetic induction. Again practice recent years past papers, especially 17-18.. You can also attempt from topical to strengthen your weak subs Paper 2 Tips - Structured Questions Read all the three questions in section B before you make your choice of which two questions to answer. Some students find it better - to read through the whole paper before they start writing any answers at all - to start answering section B with the que

5070/42 Answers Q1)Table: 23.6, 0.3 Tick on 23.6 and 23.8 Mean 23.7 Moles of HCl: 0.01398 Moles of Magnesium Hydroxide: 0.00699 Mass of Mg(OH)2: 0.405(42) Mass of Milk Of Magnesia : 11.7 % = 3.46~ Q2) Chromatography se karna tha Electro Chemistry: Cathode: pink deposits Anode : Colorless gas. Observation with inert: blue color fades away COLOR CHANGE WITH Cu electrodes: No change. Mass of Anode Decrease Mass of Cathode increase Graph Question: Color Change of Sol; Colorless to Brown Q) Why did addition of CaCO3 stopped rxn. A) Acid was nuetralized... Anomalous Point : 100,11.0 Volume: 13.0~15.0 (Depends on Graph) Time : 85~95 (Again Depends on Graph) The gradient at 50s was steeper than At 400s Reason : More molecules, more effective collision, high Rate of Reaction. PREPARATION OF SALTS: a) 1. Excess CuCO3 in Sulfuric acid. 2.Heat/Stir 3.Filter 4. CRYSTALLISATION 5. WASH AND DRY. b) 1. Silver Nitrate + Ammonium Chloride 2. Mix, Stir. 3. Filter 4. Wa

Chemistry ATP 5070/42 -Practice recent past papers all variants (2017-2018) TOPICS to focus -MOLES -ACID,BASES AND SATLS -EXPERIMENTAL CHEMISTRY -Rate of Reaction -Identification of ions and gases -Electrolysis -Titration Especially identification of ions and gases , moles and  experiments should be on your fingertips. Revise these topics if you’re done with past papers Experimental chem notes https://drive.google.com/open?id=1hYKUKtuBsqGVsmAT5gcP0e_cyt2YXm5B   Resources Elements tests https://drive.google.com/open?id=1n3uHgOq7wpYUBx-fjkIrUBwFDJd4oazM Common questions https://drive.google.com/open?id=1fYMHIr5AHpYbqYnIZqj38OWvjL8XlXUi Identification of ions and gases extensive practice and notes https://drive.google.com/open?id=1nusu7DYQsqx2yWBk8L4LxiIy_o2UFr_3 Moles extensive practice and notes https://drive.google.com/open?id=1YXf07iPsGAyJYwSp1vl0YWhhPsTGmPy0 Paper 4 (Alternative to Practical) Tips • When plotting graphs, you should be able to accurately plot

English Language 1123 quick tips for CAIE M/ J19 As three months are left, reading books is mostly out the question P1: • Always start the directed writing with the given instructions. Revise the formats before appearing for exam • Before the exam, identify common topics in areas of technology, environment, family issues and sports for example, and make mind maps using what you know about the topics. • Write 3 – 5 paragraphs in your letter/report/speech/article/account. • Write a proper beginning and ending sentence. • The word limit is 200 – 300 words. You should write around 250 words at least. Do not exceed word limit more than 10 words • Use formal language in all directed writing tasks, except Informal letter. • Always plan your response before you start writing. You can divide the examination time in the following way: • 1. Planning your response: 3/4 minutes. • 2. Writing : 22 – 24 minutes. • 3. Editing: 3 – 4 minutes •  For Section 2, chose  your topic carefully th