What is the formula for Magnesium Nitride?

What is the formula for Magnesium Nitride? 
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1 Answer

Answer :

ANSWER: Mg3N2
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Which compound is formed when a Magnesium ribbon is burnt in air? (1) Magnesium Nitrate (2) Magnesium Carbonate (3) Magnesium Oxide (4) Magnesium Nitride

Description : Which compound is formed when a Magnesium ribbon is burnt in air? (1) Magnesium Nitrate (2) Magnesium Carbonate (3) Magnesium Oxide (4) Magnesium Nitride

Last Answer : (3) Magnesium Oxide Explanation: When Magnesium burns air it reacts with oxygen present in air to form magnesium oxide.

Poison used for killing rats is – (1) Calcium phosphide (Ca3P2) (2) Zinc phosphide (Zn3P2) (3) Magnesium nitride (Mg3N2) (4) Magnesium phosphide (Mg3P2)

Description : Poison used for killing rats is – (1) Calcium phosphide (Ca3P2) (2) Zinc phosphide (Zn3P2) (3) Magnesium nitride (Mg3N2) (4) Magnesium phosphide (Mg3P2)

Last Answer : (2) Zinc phosphide (Zn3P2) Explanation: Zinc phosphide is an inorganic compound that is used in pesticide products as a rodenticide. Formulated as attractive bait, it releases phosphine gas once it is exposed to acid and moisture in the stomach. The phosphine gas is very toxic to all animals.

Give reason: During burning of magnesium not only magnesium oxide is formed but also magnesium nitride is formed.

Description : Give reason: During burning of magnesium not only magnesium oxide is formed but also magnesium nitride is formed.

Last Answer : Due to high temperature the triple bond between nitrogen atoms is broken and a small quantity of magnesium nitride is formed.

What is the formula for Calcium Nitride?

Description : What is the formula for Calcium Nitride?

Last Answer : ANSWER: Ca3N2

What is cation charge of barium nitride?

Description : What is cation charge of barium nitride?

Last Answer : Need answer

Both rubies and sapphires contain (a) silicon dioxide (b) lead tetroxide (c) aluminium oxide (d) boron nitride

Description : Both rubies and sapphires contain (a) silicon dioxide (b) lead tetroxide (c) aluminium oxide (d) boron nitride

Last Answer : Ans:(c)

Pick out the wrong statement. (A) Addition of methane to the furnace atmosphere reduces decarburising by hydrogen (B) Nitrogen in presence of steam decor-burises high carbon steel, whereas hydrocarbon gases carburise the surface of steel at annealing temperatures (C) Active nitrogen (formed by cracking ammonia at the metal surface) cause nitride formation with increase in surface hardness (D) None of these

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Last Answer : (D) None of these

What is the formula of the compound formed between magnesium and oxygen? A MgO B Mg2O2 C Mg2O3 D MgO2 E Mg2O

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Last Answer : A MgO

Which of the following elements would form an acid oxide with the formula XO2 and an acidic compound with hydrogen with the formula XH2? w) Sodium x) Magnesium y) Aluminum z) Sulfur

Description : Which of the following elements would form an acid oxide with the formula XO2 and an acidic compound with hydrogen with the formula XH2? w) Sodium x) Magnesium y) Aluminum z) Sulfur

Last Answer : ANSWER: Z -- SULFUR

What is the formula of the compound formed between Magnesium and Chlorine?

Description : What is the formula of the compound formed between Magnesium and Chlorine?

Last Answer : The ionic compound formed between magnesium and chlorine has theformula MgCl2.

What is the polyatomic formula for magnesium hydrogen carbonate?

Description : What is the polyatomic formula for magnesium hydrogen carbonate?

Last Answer : Formula for magnesium hydrogen carbonate is Mg(HCO3)2.

What is the correct chemical formula for magnesium oxide?

Description : What is the correct chemical formula for magnesium oxide?

Last Answer : Magnesium oxide, or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium. It has an empirical formula of MgO and consists of a lattice of Mg²⁺ ions and O²⁻ ions held together by ionic bonding

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Description : .Identify the physical and chemical changes from the following (i)Burning of magnesium in air (ii)Electrolysis of water (iii)Tarnishing of silver spoon (iv)Sublimation of iodine -Chemistry

Last Answer : (i) Burning of magnesium in air : Chemical change (ii) Tarnishing of silver spoon : Chemical change (iii) Sublimation of iodine : Physical change (iv) Electrolysis of water to form hydrogen and oxygen is also a chemical change.

Write balanced equation for the reaction between magnesium and hydrochloric acid. Name the product obtained, identify the type of reaction. -Chemistry

Description : Write balanced equation for the reaction between magnesium and hydrochloric acid. Name the product obtained, identify the type of reaction. -Chemistry

Last Answer : Answer. The product formed is magnesium chloride and hydrogen gas. It is a displacement reaction.

Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Description : Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Last Answer : This is the Answer.

State the type of chemical reactions and chemical equations that take place in the following: (i) Magnesium wire is burnt in air. (ii) Electric current is passed through water. (iii) Ammonia and hydrogen chloride gases’are mixed. -Chemistry

Description : State the type of chemical reactions and chemical equations that take place in the following: (i) Magnesium wire is burnt in air. (ii) Electric current is passed through water. (iii) Ammonia and hydrogen chloride gases’are mixed. -Chemistry

Last Answer : This is the Answer:

You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry

Description : You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry

Last Answer : Aim: To test the nature of oxides formed by metals and non-metals. Materials Required: Sulphur powder, Mg ribbon, water, blue litmus paper, red litmus paper. Procedure: 1.Take magnesium ribbon ... the metallic oxides are basic in nature whereas most of the non-metallic oxides are acidic in nature.

You are given samples of three metals. Sodium, magnesium and copper. Suggest any two activities to arrange them in order of decreasing activity. -Chemistry

Description : You are given samples of three metals. Sodium, magnesium and copper. Suggest any two activities to arrange them in order of decreasing activity. -Chemistry

Last Answer : Activity 1: Sodium reacts with cold water vigorously to form sodium hydroxide and hydrogen gas Magnesium does not react with cold water but with hot water to form magnesium ! hydroxide and hydrogen gas. Hence sodium is more reactive than magnesium.

What is the religion of magnesium ?

Description : What is the religion of magnesium ?

Last Answer : Religion of Magnesium Physical Religion: Magnesium is a bright silver metal. It has a melting point of 850 ° C and a boiling point of 1090 ° C. Chemical properties: Magnesium is very electropositive , so it ... the last orbit, its scheme is 2. However, its activity is less than that of calcium.

What is Magnesium ?

Description : What is Magnesium ?

Last Answer : Magnesium is a chemical element. Its symbol is Mg and its atomic number is 15. It is a glossy gray metal located in the second group of the periodic table. Symbol: Mg Name: Magnesium Atomic number: 15 ... mass: 24.305 Elements class: Alkali metal class: 2 Stages: 3 Electron configuration: [ Ne] 3s 2

What is the physical condition of magnesium ?

Description : What is the physical condition of magnesium ?

Last Answer : The physical state of magnesium is silver white metal.

Who Discovered Magnesium ?

Description : Who Discovered Magnesium ?

Last Answer : Magnesium H. Davy discovers.

In what year was magnesium discovered ?

Description : In what year was magnesium discovered ?

Last Answer : Magnesium was discovered in 1808 .

What is the valence of magnesium ?

Description : What is the valence of magnesium ?

Last Answer : Magnesium valence 2 .

What is the boiling point of magnesium ?

Description : What is the boiling point of magnesium ?

Last Answer : The boiling point of magnesium is 1090 degrees Celsius.

What is the melting point of magnesium ?

Description : What is the melting point of magnesium ?

Last Answer : Magnesium has a melting point of 650 degrees Celsius.

What is the relative atomic mass of magnesium ?

Description : What is the relative atomic mass of magnesium ?

Last Answer : The relative atomic mass of magnesium is 24 .

What is the name of Magnesium ?

Description : What is the name of Magnesium ?

Last Answer : Magnesium comes from the name Magnesia which was a district in Greece.

What kind of compound is magnesium oxide ?

Description : What kind of compound is magnesium oxide ?

Last Answer : Magnesium oxide is an ionic compound.

Why Magnesium , Copper and Zinc only react when dipped in hot water ?

Description : Why Magnesium , Copper and Zinc only react when dipped in hot water ?

Last Answer : Magnesium is the element at the top of the activation table. The value of its oxidation potential is more negative i.e. it is easily oxidized. But the position of copper is below H2 and the deposition ... in water to H2 gas. But magnesium degrades H + ions. So only magnesium reacts with hot water.

What is the symbol of Magnesium ?

Description : What is the symbol of Magnesium ?

Last Answer : Symbol of magnesium Mg |

What is the sign of Magnesium ?

Description : What is the sign of Magnesium ?

Last Answer : Signals of Magnesium Mg.

(3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic a big drawback of washing with soap is that the minerals in water react with those in soap, leaving an insoluble film. Detergents react less to minerals in water and for all practical purposes are the product of choice for laundry, unless you have very soft water. On the other hand, soap will combine with the magnesium and calcium ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Description : (3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic a big drawback of washing with soap is that the minerals in water ... ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Last Answer : What is the objective of the 'Kyoto Protocol'? (1) To abolish child labour (2) To eliminate nuclear weapons (3) To increase ground water levels (4) To reduce greenhouse gases

(3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic. a big drawback of washing with soap is that the minerals in water react with those in soap, leaving an insoluble film. Detergents react less to minerals in water and for all practical purposes are the product of choice for laundry, unless you have very soft water. On the other hand, soap will combine with the magnesium and calcium ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Description : (3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic. a big drawback of washing with soap is that the minerals in water ... ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Last Answer : Cement is usually a mixture of – (1) Calcium silicate and calcium alurninate (2) Calcium silicate and calcium ferrate (3) Calcium aluminate and calcium ferrate (4) Lime stone and silicon dioxide

(3) preventing rapid setting of cement Explanation: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of aluminium- and ironcontaining clinker phases and other compounds. The ratio of CaO to SiO2 shall not be less than 2.0. The magnesium oxide content (MgO) shall not exceed 5.0% by mass. Cement sets when mixed with water by way of a complex series of chemical reactions still only partly understood.

Description : (3) preventing rapid setting of cement Explanation: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of ... mixed with water by way of a complex series of chemical reactions still only partly understood.

Last Answer : Milk is a colloidal system in which: (1) Water is dispersed in fat (2) Fat is dispersed in water (3) Fat and water are dispersed in each other (4) Fat is dissolved

(4) sodium chloride contains hygroscopic impurities like magnesium chloride Explanation: Table salt is refined salt, which contains about 97 to 99 percent sodium chloride. It usually contains substances that make it freeflowing (anticaking agents) such as sodium aluminosilicate or magnesium carbonate. Because of Hygroscopic nature of salt it become wet in rainy season as the salt absorbs moisture from environment.

Description : (4) sodium chloride contains hygroscopic impurities like magnesium chloride Explanation: Table salt is refined salt, which contains about 97 to 99 percent sodium chloride. It usually contains substances that ... of salt it become wet in rainy season as the salt absorbs moisture from environment.

Last Answer : Which of the following could be used as fuel in propellant or rockets? (1) Liquid Hydrogen + Liquid Nitrogen (2) Liquid Oxygen + Liquid Argon (3) Liquid Nitrogen + Liquid Oxygen (4) Liquid Hydrogen + Liquid Oxygen

Antacid tablets consist of – (1) Hydroxides of sodium, magnesium and aluminium (2) Hydroxides of magnesium and aluminium (3) Hydroxides of sodium and aluminium (4) Hydroxides of magnesium and sodium

Description : Antacid tablets consist of – (1) Hydroxides of sodium, magnesium and aluminium (2) Hydroxides of magnesium and aluminium (3) Hydroxides of sodium and aluminium (4) Hydroxides of magnesium and sodium

Last Answer : (2) Hydroxides of magnesium and aluminium Explanation: An antacid is a base which neutralizes stomach acidity. The most common of these bases are hydroxides, carbonates, or bicarbonates such as Aluminum hydroxide, Calcium. carbonate, Magnesium carbonate, Magnesium hydroxide, and Sodium bicarbonate.

Hardness of the water is commonly measured in terms of - (1) Calcium carbonate equivalents (2) Calcium sulphate equivalents (3) Magnesium carbonate equivalents (4) Magnesium sulphate equivalents

Description : Hardness of the water is commonly measured in terms of - (1) Calcium carbonate equivalents (2) Calcium sulphate equivalents (3) Magnesium carbonate equivalents (4) Magnesium sulphate equivalents

Last Answer : (1) Calcium carbonate equivalents

Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.

Which of the following is an essential element used in the synthesis of proteins and other compounds? (1) Phosphorus (2) Iron (3) Magnesium (4) Nitrogen

Description : Which of the following is an essential element used in the synthesis of proteins and other compounds? (1) Phosphorus (2) Iron (3) Magnesium (4) Nitrogen

Last Answer : (4) Nitrogen Explanation: Although all of the elements above are used by plants and taken up via the soil, nitrogen is especially essential and used specifically for the for the synthesis of proteins and other compounds.

Milk of magnesia is a suspension of – (1) magnesium sulphate (2) magnesium carbonate (3) magnesium hydroxide (4) magnesium Chloride

Description : Milk of magnesia is a suspension of – (1) magnesium sulphate (2) magnesium carbonate (3) magnesium hydroxide (4) magnesium Chloride

Last Answer : (3) magnesium hydroxide Explanation: Milk of magnesia is a suspension of magnesium hydroxide due to its milk-like appearance.

The two metal ions that cause hardness to water are: (1) Calcium, Magnesium (2) Sodium, Calcium (3) Sodium, Potassium (4) Sodium, Magnesium

Description : The two metal ions that cause hardness to water are: (1) Calcium, Magnesium (2) Sodium, Calcium (3) Sodium, Potassium (4) Sodium, Magnesium

Last Answer : (1) Calcium, Magnesium Explanation: Calcium and magnesium ion cause hardness of water.

Which one of the following metals does not form amalgam? (1) Zinc (2) Copper (3) Magnesium (4) Iron

Description : Which one of the following metals does not form amalgam? (1) Zinc (2) Copper (3) Magnesium (4) Iron

Last Answer : (4) Iron Explanation: The definition of an amalgam is a mixture of metals and mercury, which can be man-made or can be naturally occurring.

Which of the following is not an ore of magnesium? (1) Carnallite (2) Dolomite (3) Calamine (4) Sea water

Description : Which of the following is not an ore of magnesium? (1) Carnallite (2) Dolomite (3) Calamine (4) Sea water

Last Answer : (3) Calamine

Philosopher’s wool is chemically - (1) Aluminium oxide (2) Magnesium oxide (3) Zinc oxide (4) Calcium oxide

Description : Philosopher’s wool is chemically - (1) Aluminium oxide (2) Magnesium oxide (3) Zinc oxide (4) Calcium oxide

Last Answer : (3) Zinc oxide Explanation: Philosopher's Wool is chemically zinc oxide.

Chemical that is used in photography - (1) Copper sulphate (2) Silver bromide (3) Magnesium sulphate (4) None

Description : Chemical that is used in photography - (1) Copper sulphate (2) Silver bromide (3) Magnesium sulphate (4) None

Last Answer : (2) Silver bromide Explanation: Silver bromide (AgBr) is a soft pale-yellow, water insoluble salt well for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.

The metallic constituents of hard water are - (1) Magnesium, Calcium and tin (2) Iron, tin and calcium (3) Calcium, magnesium and iron (4) Magnesium, tin and iron

Description : The metallic constituents of hard water are - (1) Magnesium, Calcium and tin (2) Iron, tin and calcium (3) Calcium, magnesium and iron (4) Magnesium, tin and iron

Last Answer : (3) Calcium, magnesium and iron Explanation: Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed whenwater percolates through deposits of limestone and chalk which are largely made up of calcium and magnesium carbonates.

Non-metallic character increases from (1) Magnesium to Barium (2) Potassium to Cesium (3) Oxygen to Selenium (4) Sodium to Chlorine

Description : Non-metallic character increases from (1) Magnesium to Barium (2) Potassium to Cesium (3) Oxygen to Selenium (4) Sodium to Chlorine

Last Answer : (4) Sodium to Chlorine Explanation: The elements which lose electrons to form cations are known as metals. Metallic character decreases across a period as we move from left to right.

Which among the following is a covalent compound? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Description : Which among the following is a covalent compound? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Last Answer : (4) Carbon tetrachloride Explanation: Ionic compounds are made up of a metal and non-metal, and covalent compounds are made up of two nonmetals

Which of the following is the most abundant metal on Earth's crust? (1) Magnesium (2) Iron (3) Copper (4) Aluminium

Description : Which of the following is the most abundant metal on Earth's crust? (1) Magnesium (2) Iron (3) Copper (4) Aluminium

Last Answer : (4) Aluminium Explanation: Aluminum is the most abundant metal in the Earth's crust, and the third most abundant element therein, after oxygen and silicon. It makes up about 8% by weight of the Earth's solid ... of Earth's volume Oxygen is 46.6%, Silicon 27.77%, Aluminum is 8.09% and iron is 5%.