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The main purpose of this channel is to: 1. Print various Maths questions. 2. Publishing various books. 3. Print various short notes. Share it with your friends! Hirriyyoota keessaniif share godha!

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5 085

Let A be a 3 × 3 triangular matrix and its diagonal elements are 1, 4, and 2. Then which one of the following is not true about its determinate?

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Repost from Exam question

+ማሪ ናችሁ?

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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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The determinate of all triangular matrices can be calculated by:

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Repost from Exam question

+ማሪ ናችሁ?

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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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A catalyst increases the reaction rates by changing the reaction mechanism.

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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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What is the oxidation number of Fe in K₄[Fe(CN)₆] ?

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Repost from Exam question

+ማሪ ናችሁ?

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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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𝗗𝗮𝗱𝗱𝗮𝗳𝗮𝗮 𝗙𝗮𝘆𝘆𝗮𝗱𝗮𝗺𝗮𝗮. 𝗱𝗮𝗾𝗶𝗶𝗾𝗮𝗮 30 𝗤𝗼𝗳𝗮𝗮𝗻 𝗞𝗮𝗳𝗳𝗮𝗹𝘁𝗶𝗶 𝗠𝗮𝗹𝗲𝗲 𝗧𝗮𝗷𝗮𝗮𝗷𝗶𝗹𝗮 𝗚𝗼𝘀𝗮 𝗦𝗮𝗱𝗶𝗶 𝗞𝗲𝗻𝗻𝗮𝗮 𝗝𝗶𝗿𝗮𝗮𝗰𝗵𝘂𝘂𝗻 𝗶𝘀𝗮𝗮 𝗯𝗲𝗲𝗸𝗮𝗺𝗮𝗮𝗱𝗵𝗮. 𝗜𝘀𝗶𝗻𝗼𝗼 𝗸𝗮𝗺𝗶𝗶𝗻 𝗯𝗮𝗿𝗯𝗮𝗮𝗱𝗱𝘂?

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Dhiheenya kana barattoonni kutaa 12ffaa fi 8ffaa qophii qormaataa gochuu Akka qabaniif barnoota addaa kennamaa jira. Kan kutaa meeqaa barbaaddu?

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🌍BREAKING Channel🌐 𝗖𝗵𝗮𝗮𝗻𝗮𝗮𝗹𝗼𝘁𝗮 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗛𝗲𝗱𝗱𝘂𝘂 𝗕𝗮𝗿𝗯𝗮𝗮𝗰𝗵𝗶𝘀𝗮𝗮 𝗙𝗶 𝗙𝗶𝗹𝗮𝘁𝗮𝗺𝗮𝗮 𝗡𝗮𝗺𝗼𝗼𝘁𝗻𝗶 𝗕𝗮𝗮𝘆𝘆𝗲𝗲𝗻 𝗙𝗮𝘆𝗮𝗱𝗮𝗺𝗮𝗮 𝗝𝗶𝗿𝗮𝗻 𝗤𝗮𝗯𝗮𝗻𝗻𝗲𝗲 𝗜𝘀𝗶𝗻𝗶𝗶𝗳 𝗗𝗵𝗶𝗵𝗮𝗮𝗻𝗻𝗲𝗲 𝗝𝗶𝗿𝗿𝗮. 𝗞𝗮𝗻 𝗕𝗮𝗿𝗯𝗮𝗮𝗱𝗱𝗮𝗻 𝗞𝗲𝗲𝘀𝘀𝗮 𝗙𝗶𝗹𝗮𝗱𝗵𝗮𝗮 𝗙𝗮𝘆𝘆𝗮𝗱𝗮𝗺𝗮𝗮.

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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?

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For endothermic reactions, change in enthalpy (∆H) is:

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Consider the following chemical equation: PCl₅ + H₂O ------>H₃PO₄ + HCl. Then what is the coefficient of HCl after balancing of chemical equation?

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