Answered: NaF and CaO.Which has the higher…

Science

Chemistry

NaF and CaO.Which has the higher melting point and why?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter19: The Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 23QRT

See similar textbooks

Related questions

Q: Why are Be and Mg metals used as deoxidizers?

A: Be and Mg metals are used as deoxidizers.

Q: Magnesium ions are removed in water treatment by the addition of slaked lime, Ca1OH22. Write a…

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

Q: What do you mean by triple point for CO2?

A: In thermodynamics, there exists a particular temperature and pressure at which all three phases-…

Q: What are Ionic hydrides?

A: Ionic hydrides have to be given below.

Q: Write the chemical equation for the removal of lead and copper from water using phosphates

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: How does adding water to the NaCl and SiO2 separate the two substances? What physical property is…

A: Filtration and distillation are physical separation methods that are based on the difference in…

Q: Calculate the quantity of heat in kJ, associated with a 33.5oC decrease in temperature in: 1. A…

A: Given . Mass of aluminum ( m) = 5.85 Kg = 5.85 × 103…

Q: Calculate the amount of heat transferred when 3.59 g of Mg(s) reacts at constant pressure.

Q: How many electrons does a halogen atom need to complete its octet? Give examples of the ways a Cl…

A: The number of electrons that are needed to halogen atom to complete its octet has to be given and it…

Q: Discuss how the concentration of Ca2+ ions, that are in equilibrium with calcite changes upon…

A: The solubility of calcite and aragonite in carbonic acid has been determined over a CO2…

Q: Which of the following compounds would you expect to have the lowest melting point? CaO H2O Na2O…

A: Ionic compounds with higher charges have higher melting point due to strong intermolecular forces…

Q: Write the equations for the reaction of Group II cations with H2S and give the color of each…

Q: Describe the Haber process?

A: To describe the Haber process.

Q: Silicic acid, SiO2.xH2O(s), is a weaker acid than carbonic acid, H2CO3(aq). Write a balanced…

A: Chemical reaction is given by, Mg2SiO4 + 4CO2 + 2H2O 2Mg+2 + 4HCO3- + H4SiO4 Mg2SiO4 + 4H2CO3…

Q: colour of the CuCl remain the same if you leave it to dry in the atmosphere ?

A: The Copper (II) Chloride made will dry out in the air and form green crystals. After a while days,…

Q: Discuss the nature of bonds in NaCl and diamond. What do you mean by directionality of covalent…

A: Ionic bonds are formed when the atoms transfer electrons among each other leading to formation of…

Q: What is the equation for the formation reaction for gaseous hydrazine, N2H4, at 25ºC and 1 atm…

A: Hydrazine is inorganic compounds. Molar mass = 32.0452 gmol^-1. It is a colorless flammable liquid…

Q: In terms of bond energies and thermodynamics, why do we (as a society) make so much CO2?

A: Carbon dioxide (CO2) is a greenhouse gas. It is mostly released through human activities. It is…

Q: Explain the chemical bonding between Ca and Cl atoms with the help of Lewis electron dot structure?

Q: Why is CO2 considered a molecule but CaO is not?

A: Applying definition of molecules we can define the molecular and ionic species.

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

Q: How do you find the oxidation numbers of Cr and P in the formula unit Cr(PO4)2?

Q: Use heat of formation data from Appendix E to calculate the change in the standard heat of reaction…

A: Given reaction is : ClO2 (g) + O (g) ⟶ ClO (g) + O2 (g) Calculate the change in the standard heat of…

Q: What mass of water will be consumed from the reaction of 78 g of calcium carbide, CaC, with water in…

Q: Suppose CaO is placed in a vacuum in which the partial pressure of oxygen is 10-r mm Hg. Will Cao be…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: how precipitation helps in extracting magnesium from sea water

A: Magnesium chloride is naturally extracted by seawater by precipitating it to magnesium hydroxide.…

Q: ?→ He+ Pu 94

A: In clear Chemistry, one type of element changes into another type of atom. For changing one to…

Q: Lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined…

A: Number of moles of Li2O = Given massMolar mass Here Given mass = 1000 g 1kg = 1000 gMolar mass…

Q: The standard enthalpy change for the following reaction is 940 kJ at 298 K. TiO,(s) Ti(s) +02(g) AH°…

Q: Given the following elements: Si, Sr, Cu, Ti, S (a) which of those elements would have the larget…

A: Si belongs to Group 14 and period 3.Sr belongs to Group 2 and period 5.Cu and Ti are transition…

Q: Write both an equation using lewis structures and a balanced chemical equation for the reaction…

A: In this question, we have to write both an equation using lewis structures and a balanced chemical…

Q: Write the chemical reactions involved in the extraction of silver from silver ore.

A: Silver is a noble metal. The most important ore of silver is argentite.

Q: ten grams of calcium is formed by passing a current of 3.5 A through molten CaCl2

A: Given, Mass of Ca produced = W = 10 g Current passed = I = 3.5 A Time = t = ? Salt = CaCl2

Q: silicates

Q: How does CaO or CaCO2 remove SO2 from flue gases?

A: Since SO2 is an acidic gas, it has to be removed from the flue gas.

Q: Why do alkaline earth metals have low ionization enthalpy?

A: Solution;- Alkaline earth metals have the lowest ionization enthalpy

Q: 2. For each of the following pairs of substances, predict which member of the pair will have the…

A: Substance which has high forces of attraction between the atoms/molecules/ions has high melting…

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: Write chemical equations for each of the following chemical and physical processes: (a)…

A: A chemical equation represents the conversion of a reactant to the product. But the number of atoms…

Q: Out of white phosphorus and red phosphorus, which one is more reactive and why?

A: Allotropes are usually different structural modification of an element. White phosphorus and red…

Q: Give the important uses of sodium carbonate.

A: The inorganic compound that has the formula Na2CO3, which is white in color, and is water-soluble,…

Concept explainers

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.

Question

NaF and CaO.
Which has the higher melting point and why?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Between CO2 and air, which loses more heat upon cooling after heating? Explain why this occurs.
From its phase diagram, why do you think CO2 is called dry ice?
Ko is related to Ko by the equation K, = Kc (RT)An, What is the value of An for the reaction below? N2 (g) + 3H2 (g)= 2NH3 (g)
Hypochlorous acid (HCIO) is a weak acid. The conjugate base of this acid is the hypochlorite ion (CIO). Wrtie a balanced equation showing the reaction of HCIO with water. Include phase symbols. balanced equation: Write a balanced equation showing the reaction of CIO with water. Include phase symbols. balanced equation:
A solution is formed from dissolving 1 mole of Al(NO3)3 into enough water to have a total volume of 1 liter. The heat of the solution from this dissolution process was found to be 175 kJ/mol. if the lattice energy for the aluminum nitrate is 5960 kJ/mol in the heat of the hydration for the aluminum (III) cation is -4606 kJ/mol What is the heat of hydration for the nitrate ion in kJ/mol?
how precipitation helps in extracting magnesium from sea water
3. What is the percentage of sulfur in a sample of 2 gm of coal that gave a precipitate of 0.084 g of barium sulfate? Note that the atomic weight of sulfur is 32 gm / mole and the molecular weight of the Baso precipitate is 233.4 g / mole.
4. The common oxidation number for an alkaline earth metal is +2. (a) Using the Born-Mayer equation (for determining the lattice enthalpy) and a Born-Haber cycle (draw it), show that CaCl is an exothermic compound (negative AHf). Make a reasonable prediction to estimate the ionic radius of Ca (explain your reasoning). The sublimation (atomization) enthalpy for Ca(s) is 178 kJ/mol. (b) Show that an explanation for the non-existence of CaCl can be found in the enthalpy change for the reaction below. The AHf for CaCl2(s) is -190.2 kcal/mol. 2 CaCl(s) → Ca(s) + CaCl2(s)
If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) + SO3(g) If you are heating a sample of CoSO4·6H2O and this reaction occurs along withdehydration, what will happen to the experimental percent water? Explain your answer.
How many kj of heat are needed to produce 6.47 g NH 3 ? 4NO+6H 2 O 4NH 3 +5O 2; triangle H=906 kJ
Give the reaction type: CaCl2•3H2O (s) + ∆ ⟶ CaCl2 (s) + 3H2O (g)
Which has the highest melting point? LiH, CH4, or NH3