I Magnesium hydroxide is a strong base toppr

December 27 2019 Toppr Solve related Questions Which among the following pairs of acid and base are weak respectively? 1 Verified Answer Magnesium hydroxide is a strong base I I Hydroxides of alkali metals and most alkaline earth metals are strong bases 1 Verified Answer View Answer A metalloid is a type of chemical element which has properties in between or that are a mixture of those of metals and nonmetals There is neither a standard definition of a metalloid nor complete agreement on the elements appropriately classified as such Despite the lack of specificity the term remains in use in the literature of chemistry The six commonly recognised metalloids are boron

Alkaline

6-7-2020Alkaline-earth metal any of the six chemical elements that comprise Group 2 (IIa) of the periodic table The elements are beryllium (Be) magnesium (Mg) calcium (Ca) strontium (Sr) barium (Ba) and radium (Ra) Prior to the 19th century substances that were nonmetallic insoluble in water and

(a) When sodium carbonate is added to water it hydrolyses to give sodium bicarbonate and sodium hydroxide (a strong base) As a result the solution becomes alkaline (b) It is not possible to prepare alkali metals by the chemical reduction of their oxides as they themselves are very strong

Base (chemistry) explained In chemistry bases are substances that in aqueous solution release hydroxide (OH −) ions are slippery to the touch can taste bitter if an alkali change the color of indicators (e g turn red litmus paper blue) react with acids to form salts promote certain chemical reactions (base catalysis) accept protons from any proton donor or contain completely or

Calcium also reacts with water to form calcium hydroxide and hydrogen Ca + 2H 2 O → Ca(OH) 2 + H 2 Whereas magnesium and zinc do not react with cold water They form their respective oxides when reacted with hot water Mg + H 2 O → MgO + H 2 Iron is less reactive than sodium potassium calcium zinc and magnesium

Sodium thiosulfate is used in gold mining water treatment analytical chemistry the development of silver-based photographic film and prints and medicine The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis It is on the World Health Organization's List of Essential Medicines the safest and most effective medicines needed in a health system

Two Examples Of Acidic Oxides

This is another section in O Level Chemistry where students find it tough to comprehend Two examples of acidic oxides Lets reveal the Secrets here An oxide is a compound of Oxygen and another element (e g Two examples of acidic oxides through the process of Combustion)

Page ID 34 No headers Welcome to the Chemistry Library This Living Library is a principal hub of the LibreTexts project which is a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education at all levels of higher learning The LibreTexts approach is highly collaborative where an Open Access textbook environment is under

AlCl3 + 3 H2O ----- AlCl3 + 3 HCl Anhydrous AlCl3 fumes (give HCl) in air due to hydrolysis by moisture in air Hydrolysis of AlCl3 can have another meaning An aqueous solution of AlCl3 is acidic in nature (acidic to litmus) due to hydrolysis of AlCl3 as it is a salt of waek base Al(OH)3 and a strong acid (HCl) DA: 58 PA: 56 MOZ Rank: 41

Acids Bases and Salts Class 10 Science Chapter Explanation Examples Question Answers Acids Bases and Salts Notes of CBSE Class 10 Science Chapter with detailed explanation of the chapter 'Acids bases and salts' along with meanings of difficult words Given here is the complete explanation of the chapter along with examples and all the exercises Question and Answers given at the back

This is the syllabus for mains Organic Chemistry Concepts ‌Hybridisation of carbon ‌σ and π-bonds ‌ Shapes of simple organic molecules ‌ Structural and geometrical isomerism ‌ Optical isomerism of compounds containing up to two asymmetric centr

In this example the magnesium atom is donating both of its valence electrons to chlorine atoms Each chlorine atom can only accept 1 electron before it can achieve its noble gas configuration therefore 2 atoms of chlorine are required to accept the 2 electrons donated by the magnesium Notice that the net charge of the compound is 0

This is another section in O Level Chemistry where students find it tough to comprehend Two examples of acidic oxides Lets reveal the Secrets here An oxide is a compound of Oxygen and another element (e g Two examples of acidic oxides through the process of Combustion)

Page ID 34 No headers Welcome to the Chemistry Library This Living Library is a principal hub of the LibreTexts project which is a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education at all levels of higher learning The LibreTexts approach is highly collaborative where an Open Access textbook environment is under

phosphine ph

Phosphine (PH 3) also called hydrogen phosphide a colourless flammable extremely toxic gas with a disagreeable garliclike odour Phosphine is formed by the action of a strong base or hot water on white phosphorus or by the reaction of water with calcium phosphide (Ca 3 P 2) Phosphine is structurally similar to ammonia (NH 3) but phosphine is a much poorer solvent than ammonia and is much

AlCl3 + 3 H2O ----- AlCl3 + 3 HCl Anhydrous AlCl3 fumes (give HCl) in air due to hydrolysis by moisture in air Hydrolysis of AlCl3 can have another meaning An aqueous solution of AlCl3 is acidic in nature (acidic to litmus) due to hydrolysis of AlCl3 as it is a salt of waek base Al(OH)3 and a strong acid (HCl) DA: 58 PA: 56 MOZ Rank: 41

Its tail is stout and hairy at the base tapering and covered with minute scales and is somewhat prehensile at the end Called also tamandua little ant-bear fourmilier and cagouare The collared or striped tamandu (Tamandua bivittata) is considered a distinct species by some writers but by others is regarded as only a variety

Carbonate and Bicarbonate The carbon dioxide that is dissolved by naturally circulating waters appears in chemical analysis principally as bicarbonate and carbonate ions Carbonate that follows this path represents a linkage between the carbon cycle and the hydrologic cycle The large supply of atmospheric carbon dioxide is partly intercepted by photosynthesizing vegetation They convert it []

Its tail is stout and hairy at the base tapering and covered with minute scales and is somewhat prehensile at the end Called also tamandua little ant-bear fourmilier and cagouare The collared or striped tamandu (Tamandua bivittata) is considered a distinct species by some writers but by others is regarded as only a variety

Importance of pH in everyday Life - pH plays very important role in our life pH in our digestive system pH change as the cause of tooth decay Plants and animals are sensitive to pH change Self Defence by animals and plants through chemical warfare

main steps in obtaining a pure metal from a metal ore Steps involved in Extraction of metals Winner Science Jul 28 2012 The ore is treated with a reagent (that may be acid base or some other reagent) and the ore is soluble in it but the impurities are not

In this example the magnesium atom is donating both of its valence electrons to chlorine atoms Each chlorine atom can only accept 1 electron before it can achieve its noble gas configuration therefore 2 atoms of chlorine are required to accept the 2 electrons donated by the magnesium Notice that the net charge of the compound is 0

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