Why are Be & Mg inert to O2& H2O?

Why are Be & Mg inert to O2& H2O? 
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Beryllium and magnesium are kinetically inert to oxygen and water because of the formation of an oxide film on their surface. However, powdered beryllium burns brilliantly on ignition in air to give BeO and Be3N2. Magnesium is more electropositive and burns with dazzling brilliance in air to give MgO and Mg3N2. Calcium, strontium and barium are readily attacked by air to form the oxide and nitride. They also react with water with increasing vigour even in cold to form hydroxides. 
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Why are Be & Mg inert to O2& H2O?

Description : Why are Be & Mg inert to O2& H2O?

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Name the classes of Hydrides to which H2O, B2H6 & NaH belong

Description : Name the classes of Hydrides to which H2O, B2H6 & NaH belong

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Why inert gases are one atom ?

Description : Why inert gases are one atom ?

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Description : What is inert gas ?

Last Answer : An element that does not participate in a chemical reaction is called inert gas. 6 inert gases: Helium ( He), Neon ( Ne) , Argon ( Ar), Krypton ( Kr), Xenon ( Xe), Radon ( Rn)

How many atoms are in the molecule of inert gas ?

Description : How many atoms are in the molecule of inert gas ?

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The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

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Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is – (1) Neon (2) Krypton (3) Argon (4) Helium

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The inert gas abundantly found in widely distributed is - (1) Xe (2) Kr (3) He (4) Ar

Description : The inert gas abundantly found in widely distributed is - (1) Xe (2) Kr (3) He (4) Ar

Last Answer : (4) Ar Explanation: Argon (Ar) is the most prevalent of the noble gases in Earth's crust with the element composing 0.00015% of this crust.

Inert gases are - (1) Miscible with water (2) Not stable (3) Chemically uncreative (4) Chemically very active

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Description : Why Hydrogen is inert at room temperature?

Last Answer : Ans. Because of high bond dissociation energy of H-H bond.

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Give Reason (i)N2 is inert at room temperature. (ii) Overlapping of S orbital with any other orbital forms sigma bonds.

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Why is Nitrogen relatively inert?

Description : Why is Nitrogen relatively inert?

Last Answer : Ans: Because of a triple bond with high bond energy. 

What is the common name of the substance which is inert to nearly all chemicals and is a polymer of tetrafluoroethylene?

Description : What is the common name of the substance which is inert to nearly all chemicals and is a polymer of tetrafluoroethylene?

Last Answer : ANSWER: TEFLON

Which of the following inert gas atoms is the heaviest? w) xenon x) neon y) radon z) krypton

Description : Which of the following inert gas atoms is the heaviest? w) xenon x) neon y) radon z) krypton

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The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is (1) Xenon (2) Krypton (3) Argon (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is (1) Xenon (2) Krypton (3) Argon (4) Helium

Last Answer : Helium

The inert gas used as beacon light is (1) Kr (2) Ar (3) He (4) Ne

Description : The inert gas used as beacon light is (1) Kr (2) Ar (3) He (4) Ne

Last Answer : Ne

The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

Last Answer : Helium

Which of the inert gases can form compounds? (1) Helium (2) Xenon (3) Krypton (4) Argon

Description : Which of the inert gases can form compounds? (1) Helium (2) Xenon (3) Krypton (4) Argon

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Description : An inert gas mixed with oxygen given to patients suffering from restricted breathing is (1) Helium (2) Krypton (3) Radon (4) Argon

Last Answer : Helium

The most abundant inert gas in the atmosphere is (1) Helium (2) Neon (3) Argon (4) Krypton

Description : The most abundant inert gas in the atmosphere is (1) Helium (2) Neon (3) Argon (4) Krypton

Last Answer : Argon

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Description : Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain (A) CO (B) CO2 (C) H2O (D) Both (B) & (C)

Last Answer : (D) Both (B) & (C)

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Description : Roasting of metallurgical ores is done mainly to (A) Dehydrate it (B) Sinter the ore (C) Remove CO2 & H2O (D) Remove arsenic & sulphur

Last Answer : (D) Remove arsenic & sulphur

Give reason . the sulphate of Be & Mg are soluble in water .

Description : Give reason . the sulphate of Be & Mg are soluble in water . 

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Shouldn't H2O be in liquid state after hydrogen and oxygen react?

Description : Shouldn't H2O be in liquid state after hydrogen and oxygen react?

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Description : a) 110 g of salt is present in 550g of solution. Calculate the concentration of solution. b) 10 ml of H2SO 4 is dissolved in 90 ml of H2O. Calculate the concentration of solution. -Chemistry

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Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry

Description : Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry

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What are amphoteric oxides? Choose the amphoteric oxides from amongst the following oxides: Na2O, ZnO, Al2O3, CO2, H2O -Chemistry

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Water gas is the combination of – (1) CO and H2 (2) CO2 and H2 (3) CO and H2O (4) CO2 and CO

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