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The main purposes of this channel are to: 1. 📝 Provide various Mathematics questions and exercises. 2. 📚 Share and publish different educational books. 3. 📖 Provide useful short notes and study materials. Hirriyyoota keessaniif share godha!
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4 897
Based on the degree of ionization of in aqueous solution both acid and base are classified:
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Sodium and calcium react with water to form hydrogen gas and metal hydroxide. Yet calcium reacts at a moderate, whereas sodium reacts so rapidly. Why do these differences occur? This is due to the difference in:
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All of the following are the preconditions that needed for a chemical reaction to occur except___________.
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Congratulations to all remedial students who completed the exam! We wish you the best results!
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Given the sequence:
1, 6, 11, 16, 21, ...
What is the sum of the first 20 terms of the sequence?
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How many grams of oxygen can be prepared by the decomposition of 12 g of mercury (II) oxide? ( Atomic mass: Hg = 200 g/mol, oxygen= 16 g/mol.)
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The reactions in which oxidation and reduction do not occur and such types of reactions are known as ___________.
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When 20g of sulphur dioxide reacts with oxygen, 23 g of sulphur trioxide is formed. What is the percentage yield?
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How many liters of sulphur trioxide are formed when 4800 cm³ of sulphur dioxide is burned in air?
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How many moles of CaO are needed to react with excess water to produce 370 g of calcium hydroxide?
