Saltpeter and Chile saltpeter are two important mineral sources for nitrogen. Calculate the mass percent of nitrogen in each mineral.

Q: Assume that you have these materials: a) Li (s); b) Br2 (l); Ge (s) and d) Si(s). Choose the best…

A: For a good electrical conductor, material should have free electron to move.

Q: Magnesium is an active metal; it burns in the form of powder, ribbons, and filaments to provide…

A: Concept introduction: Magnesium (Mg) is an alkaline earth metal and belongs to group IIA in the…

Q: what happens when lead sulphide is heated in the presence of air?

A: When lead sulphide is heated in presence of air i.e in presence of oxygen, it produces lead oxide…

Q: In our experiment, Magnesium should be heated or burned gradually in a closed crucible? اختر احدى…

A: The solution is given below -

Q: Why are nitric and hydrochloric acid depositions less of a problem in most parts of the world than…

A: Acid deposition, also called acid rain, is a form of precipitation formed from the combustion…

Q: How does lime reduce sulfur dioxide emissions from the burning of coal?

A: Coal is primarily made up of carbon and it  is readily combustible. The colour of coal is…

Q: Fertilizers commonly contain compounds of which element? a) nitrogen b) aluminum c) fluorine d)…

A: Fertilizers are the chemical substances that provides to the crops or plants to increase their…

Q: Explain the process of fixing nitrogen.

A: Nitrogen fixation is the process of converting atmospheric nitrogen in the form of ammonia.…

Q: draw the structures of nitrous oxide and nitric oxide.

A: The structure of nitrous oxide is drawn as,

Q: Write the balanced reaction for the synthesis of Al2O3 from its elements?

A: Since the synthesis reaction has formation of 1 mole of compound to be synthesise from its natural…

Q: A sample of 70.5 mg of potassium phosphate is added to 15.0 mL of 0.050 M silver nitrate, resulting…

A: The molecular equation for the reaction between potassium phosphate and silver nitrate is to be…

Q: How many grams of aluminum hydroxide are obtained from 13.7g of aluminum sulfide?

A: Given:Mass of Aluminium sulphide = 13.7 gMolar mass of Al2S3 which is 150.16g/mol.Balanced chemical…

Q: Write the balanced equation for the reaction of nitrogen with hydrogen to form ammonia

A:

Q: Give

A: 2NH4​Cl + Ca(OH)2 ​→ CaCl2​ + 2H2​O+2NH3​ Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3   FeS + 2 HCl → FeCl2 + H2S…

Q: Explain why CO 2 is a gas at room temperature but H 2O is a liquid

A: There are three states of matter: Solid state Liquid state Gaseous state Non-polar covalent…

Q: Calculate the composition, in weight percent, of an alloy that contains 105 kg of iron, 0.2 kg of…

A:

Q: Describe how sodium dihydrogen phosphate can be used as a pH buffering agent.<

A: A buffer solution is one that can resists change in its pH on the addition of an acid or a base.  A…

Q: How many moles of SO2 can be produced from 1.0 kg of pyrite?

A: The reactions that produces SO, from pyrite are: 4 FeS2 +11 O2  --->  2 Fe2O3 + 8 SO2 3 FeS2 +…

Q: Mention the raw material for the main method of industrial production of substances: a) Mg b) Al c)…

A: The answers are given below

Q: What is the importance and uses of pure cobalt(II) sulphate?

A:

Q: Write the chemical equation of the thermite reaction, in which iron(III) oxide is reduced by…

A:

Q: How many Kilograms of Iron can be recovered from  1,400 kilograms of Iron ore  (  Fe2O3 )

A: By using Molar mass of Fe2O3 and Fe we can solve this problem. 979.2kg of iron can be recovered.

Q: 9. The general formula of silicate ion present cyclic silicates is (SIO3)n2n- O sio44- Si2052-…

A: Cyclic silicates contain three or more tetrahedral SiO42- units. These units are linked by two…

Q: Which is a metal alloy? O Steel O Diamond O Glasses O Limestone

A:

Q: Write the chemical formula for manganese(IV) chromate

A: Given, a chemical name of compound manganese(IV) chromate.we are asked to write the chemical formlua…

Q: how many grams of sodium iodide must be used to produce 30.2 g of iodine?

A: Mass of iodine, I2 = 30.2 g Molar mass of iodine, I2 = 253.8 g/mol Number of moles of iodine = Mass…

Q: what is the chemical formula created when thallium (81) bonds with the polyatomic ion silicate?

A: We know that silicate is  SiO4-4 and thallium is Tl+3 In formation of compound charge is it transfer…

Q: Explain why hydrogen sulfide is a gas at room temperature, whereas water, which has a lower…

A: In chemistry physical properties and chemical properties depends on the type of bond formed between…

Q: Why is Cl2 a gas, Br2 a liquid, and I2 a solid at room temperature?

A: In non-polar molecules, London dispersion forces occurs. These types of forces are directly…

Q: Although the earth was formed from the same interstellar material as the sun, there is little…

A: The atmosphere of earth consists of mostly nitrogen and oxygen along with some amount of noble…

Q: Apatite is a main mineral source for the production of phosphorus. Calculate the atomic and mass…

A: Molar weight of apatite = 509.2 g/molMass of phosphorus = 123.88 g/mol

Q: Which is the common ore of magnesium MgS or MgSO4

A: Ores are the naturally occurring solid material from which a metal can be extracted.

Q: (Fe2O3) used in the Produce Cement Clinker.

A: ANSWER:- TRUE.                 =>Fe2O3 is used in the produce cement clinker.

Q: Write an equation for the reduction of cesium chloride by elemental calcium at high temperature.

A: Given reaction, Reduction of cesium chloride by elemental calcium at high temperature.

Q: 5. Part B.2. a. Identify the chemicals necessary to produce NH3(g). b. Write a net ionic equation…

A: NH3 (g) is produced from hydrogen and nitrogen  1 mole of nitrogen (N2) gas consumes 3 mole of…

Q: Define Sulphur Oxides (SOx) and explain the effects of SOx to the environment. Relate the effect to…

A: Sulfur oxides (SOx) are compounds of sulfur and oxygen molecules. Sulfur dioxide (SO2) is the…

Q: >Describe how red and black phosphorus are made from white phosphorus.

A: Preparation of red phosphorous is as follows,Generally, white phosphorus is unstable hence it…

Q: Write a balanced equation for the formation of manganese (IV) oxide from its elements

A: Manganese (IV) oxide is a dark colored inorganic solid which is widely used as a catalyst in the…

Q: Which is a zinc ore and is used in paints, sunscreen and coins? A. Anhydrite B. Bauxite C.…

A:

Q: Write chemical equations for the following processes: 1. Sublimation of carbon dioxide 2.…

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas…

Q: Which has the highest melting point? LiH, CH4, or NH3

A: Melting point of the substance is the temperature at which it start to melt and at the melting point…

Q: How many tons of the mineral perovskite(CaTi03) are required to produce 5.00 tons of titanium metal?

A: Given : Mass of titanium i.e Ti metal to be produced = 5.00 tons  Since 1 ton = 1000 Kg And 1 Kg =…

Q: What is the oxidation state of sulfur in SF2?

A:

Q: Describe the differences in the allotropes of white and red phosphorus. Explain why red phosphorus…

A: White phosphorous:White phosphorous is made up of P4Possesses complicated network of bonding.Must…

Q: silicon

A: Pure semiconductor have high resistance power so that it's conduct less electricity this is due to…

Q: What types of oxides are formed when non-metals combine with oxygen?

A: Non-metals, such as carbon, nitrogen, sulfur, etc, when reacts with oxygen from their oxide, such as…

Q: two reactions are necessary for the production of nitrogen dioxide. write the balanced equation for…

A: two reactions are necessary for the production of nitrogen dioxide. write the balanced equation for…

Q: What is the composition, in atom percent, of an alloy that contains 98 g tin and 65 g of lead?

A:

Q: Which one of the following reactions is an example of nitrogen fixation? A. N2O5(g) = NO3(g) +…

A: Nitrogen fixation : This process is very essential for life because the fixed inorganic nitrogen…

Group 13 Elements

In the periodic table, group 13 elements exist in the first p-block. There are six elements present in group 13, which include boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (ununtrium, (Uut)). Group 13 elements are also designated as the boron family.