What is the precipitate formed from the reaction of permanent hard water with sodium carbonate? Write the balanced chemical reaction involved.

Q: what is the chemical formula created when sodium (11) bonds with the polyatomic ion chromate?

A: The chemical formula for a compound consisting of a cation Am+ and an anion Bn- can be written like…

Q: At STP conditions, identify the phase under which carbon dioxide exists

A: STP Is known as standard temperature and pressure. Standard pressure is 1 atm and temperature is 273…

Q: Describe the preparation of potassium permanganate. How does the acidified permanganate solution…

A: The chemical name of Potassium permanganate is KMnO4. It is an inorganic compound and dark violet in…

Q: . Give the formula of the substance formed after the addition of water to sulfur dioxide.

A: The chemical formula of water is H2O and chemical formula of sulfur dioxide is SO2.

Q: (a) Discuss how the hard water can be serious issue for the domestic and the industrial usage?…

A: Issues- =>Hard water is unfit for washing as it is difficult to form lather with soap. ( wasting…

Q: How many grams of sodium carbonate is needed to prepare 3.0L of 0.10N solution? Atomic mass: Na…

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Q: Write the balanced chemical equation for the reaction of dilute sulphuric acid with iron.

A: Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction…

Q: Write a balanced equation for the reaction of solid copper with silver nitrate solution, then…

A: Given :-  Cu(s) + AgNO3(aq) →  Molarity of silver nitrate solution = 2.2 M  Volume of silver nitrate…

Q: Compare and contrast the structure and properties of Magnesium oxide and Calcium Fluoride (melting…

A: The similarities and differences in the properties of Magnesium oxide and Calcium Fluoride is…

Q: Write the balanced chemical equation for the decomposition of ammonium chloride to produce ammonia…

A: Ammonium chloride (NH4Cl) decomposed in to Ammonia (NH3) and  hydrogen chloride (HCl).

Q: Describe the Haber process?

A: To describe the Haber process.

Q: a) Write the chemical equation for the dissolution of NH4Cl in water. b) Write the chemical…

A: Dissolution can be defined as the process of dissolving the substance or solute (solid, liquid, or…

Q: A student investigated the stoichiometry of the nickel (II) nitrate - sodium sulfide - water system…

A: The reactants given are Ni(NO3)2 and Na2S.

Q: What are the silicate minerals, and enlist the industries using them as raw materials?

A: Silicate minerals are the rock making minerals that are made up of silicate groups. Or we can say…

Q: Write the chemical equation that describes the dissolution of gypsum in water and describe how many…

A: Gypsum dissociates in water to form its ions.

Q: Compounds of alkaline earth metals are more extensively hydrated than those of alkali metals. Give…

A: Alkali metals: They are group 1 metals that consists the elements lithium, sodium, potassium,…

Q: Why do you need to add sodium carbonate in the extraction process of tea bags?

A: A question based on analytical separations that is to be accomplished.

Q: ry rock 6. What type of sedimentary rock is fossiliferous limeston A. Clastic sedimentary rock B.…

A: 1) Clastic sedimentary rocks are rocks composed of fragments or clasts of pre - existing mineral and…

Q: 16 - Which of the following is not correct for Limestone? A) Lime production is obtained in 2 ways…

A: A multiple choice question based on limestone, which is to be accomplished.

Q: Write an equation to show the reaction between plaster of Paris and water.

A:

Q: Explain why the energetics of dissolution can be different for elements in the same group?

A: Dissolution energy is defined as the amount of energy released when a solute is dissolved in a…

Q: Acid rain can be formed by the reaction of water with sulfur dioxide to form sulfurous acid. Write…

A: Acid rain is caused by a chemical reaction, in which compounds like sulfur dioxide and nitrogen…

Q: Compared to pure metals, alloys are ...

A: ALLOY IS A MIXTURE OF TWO OR MORE ELEMENTS WITH CERTAIN  FIXED COMPOSITIONS MAJOR COMPONENT IS…

Q: Write chemical equations for the following processes: (iv) Reduction of VO2+to produce VO2+ (v)…

A: iv) Since in VO2+ , V is in 5+ state and in VO2+ , V is in 4+ state Hence the reduction of VO2+ is…

Q: What are Silicate Ceramics? Give some examples?

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Q: Suggest three ways to increase the rate at which zinc dissolves in sulfuric acid. Use large pieces…

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Q: Write Chemical equation :(a) XeF2 is hydrolysed(b) PtF6 and Xenon are mixed together.

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Q: Explain the process of standardizing solution of silver nitrate using hydrochloric acid.

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Q: a. Covalent bonding Which of these is not an intermolecular force b. London dispersion forces C.…

A: Intermolecular forces are forces of attraction or repulsion that exists between ions, molecules and…

Q: If 0.15g of Calcium hydroxide is needed in preparing 50mL of Calcium hydroxide topical solution,…

A:

Q: How many liters (L) of hydrogen sulfide (at 25 ºC and 1.00 atm) are obtained if 3.52 g of ferrous…

A:

Q: How to prepare 0.10M of potassium iodate

A: Molarity is defined as moles of solute per unit volume of solvent.

Q: how many grams of calcium phosphate can be produced from the reaction of 3.0 L of 0.230 M calcium…

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Q: What is the concentration in parts per million of a 0.00175% w/v solution of mercuric nitrate?

A:

Q: Why is vanadium present in oil from some sources?

A: Vanadium is an element having atomic number 23. The atomic symbol of vanadium is V. It is a…

Q: Name the gas evolved : When dil. sulphuric acid reacts with sodium sulphite.

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Q: Write chemical equations for the following processes: (iv) Reduction of VO2+ to produce VO2+ (v)…

A: iv) Since in VO2+, V is in 5+ state and in VO2+, V is in 4+ state Hence the reduction of VO2+ is…

Q: Write the reaction equation for the test for carbon dioxide with calcium hydroxide solution. Show…

A: When Carbon dioxide (CO2 (g)) reacts with Calcium hydroxide solution ((Ca(OH)2 (aq), Lime water)…

Q: >Magnesium ions are removed in water treatment by the addition of slaked lime, Ca(OH)2. Write a…

A: Presence of magnesium ions in water is responsible for the hardness of water. So, during water…

Q: Write the reaction equations for the synthesis of nitric acid and nitrous acid

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Q: What solid would form when phosphoric acid (H3PO4) is added to milk of magnesia (Mg(OH)2)?

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Q: Write the balanced chemical equation that describes the solubility of ammonia in water. Write the…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What are the products of the reaction between solid copper and aqueous magnesium sulfate (MgSO4)?

A: ANSWER

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.