There you have it! Join . = 1/2 mv 2). Which of the following has the highest melting point? Expert Answer . d) MgCl2. A higher temperature indicates that more energy is being used. M G o k. I were a g c. L. So for this one, we could look at table 7.6. Question: Which Ionic Compound Has The Highest Melting Point? So, the compound above that will have the highest melting point will certainly be an ionic compound, either $\ce{NaCl}$, $\ce{CaF2}$ or $\ce{SrCl2}$. It's not the "ionic" nor "covalent" bonds in a network solid that make for the high melting point. This problem has been solved! Recall that the melting point of an ionic compound is related to its lattice energy. H2O, MgO, CCl4, CH2Cl2, CaCl2, N2, PF3 Asked By … Under ordinary conditions the ceramic Ta4HfC5 tantalum hafnium carbide is reported to have a melting point of 4215 °C. 0 1. 1 answer. CaCl2 (2 is the subscript of Cl) CaO. Asked By adminstaff @ 20/07/2019 08:17 PM. We’re being asked to determine the ionic compound with the highest melting point. See the answer . (A) NaCl (B) NaF (C) NaBr. Based on bond type, which compound has the highest melting point? 1. The high melting point of ionic compound reflects its high lattice energy. For the same alkali metal, the decreasing order of the melting points of alkali metal halides is Fluoride > chloride > bromide > iodide. Get an easy, free answer to your question in Top Homework Answers. 1 Answer. Which of the following solids has the highest melting point A S0zCs B HzOs C from AP CHEM 101 at Bayside High School, Bayside Join Yahoo Answers and get 100 points today. Trending Questions. Relevance. D is glucose - you melt it on the cooker to make toffee etc - a quick check on google tells me the melting point is 146 deg C. So the answer is D - potassium chloride - again google tells me melting point 770 deg C 1 answer. Show transcribed image text. Which of the following compounds would have the highest melting point? Ionic compounds have high melting and boiling points because the ionic bonds that hold the compounds together are very strong and require a great deal of energy to break apart. It contains ionic bonds and has a high melting point. Many cage-like compounds like adamantane and cubane with high symmetry have very high melting points. Tantalum Hafnium Carbide Alloy (3990℃). When iodine reacts with NaF, NaBr and NaCl: asked Jul 30, 2019 in Chemistry by Satkriti (69.3k points) properties of compounds; 0 votes. It contains covalent bonds and has a high melting point. This extra energy is needed to break the electrostatic attraction that is present in an ionic bond. Base your answer off of the bonding theory presented in this course. A liquid boils when its vapor pressure is equal to the atmospheric pressure. a. CsF b. LiF c. NaBr d. LiCl e. NaCl Based on bond type, which compound has the highest melting point? Al2(CO3)3 C12H22O11 C8H18 H2O. Get an easy, free answer to your question in Top Homework Answers. a. CH₃OH b. CaCl₂ c. C₆H₁₄ d. CCl₄. Oh, it's 739 3005 cojones purple. Which compound has the highest melting point? Thus, it can remain solid in a flame and be used in gas mantles. In general, the melting point of compounds with similar molecular weight increases with stronger intermolecular interactions. Favourite answer. Al2O3 KCI MgO O Nazo O NaCl. The unity used for the melting point is Celsius (C). 2. Nevertheless, thoria (thorium dioxide) has the highest melting point of all known oxides – 3300°C. Get your answers by asking now. Solution for Determine which ionic compound has the highest melting point Diamond, which has 100% covalent bonds, has the highest known melting point. and why? ... Potassium tert-butoxide being an ionic compound has the highest melting point. a. asked Oct 12, 2019 in S - block elements - alkali and alkaline earth metals by KumarManish (57.7k points) s-block elements; jee; jee mains; 0 votes. Are we going to get $1,400 … 2,2,3,3-tetramethylbutane c. 2,2,3-trimethylpentane d. 4-methylnonane Which of the following alkanes will have the lowest boiling point? 34. b. 1 Answers. e) CaF2 . a. Boyle’s law c. ideal gas law b. combined gas law d. Charles’s law . Submit your answer. b) KF. The substance is most likely a. an ionic solid b. a metallic solid c. a network solid d. a molecular solid. The melting point of KCl is 776 C whereas the melting point of NaCl is 801 C. 1. The boiling points of organic compounds can give important clues to other physical properties and structural characteristics. This compound has the highest melting point because it has the highest number of CH2 bonds. Even compounds which are nonpolar molecules can have high melting points if the London dispersion forces are great enough. asked by Anonymous on March 5, 2013; intermolecular forces. Identify the type of bonding in each substance. Which compound would you expect to have the lowest melting point? Kinetic energy is related to temperature and the mass and velocity of the molecules (K.E. 8 years ago. Which compound has the highest melting point? Relevance. 2. When ions are tightly packed together of an ionic substance, it has a higher melting point than another ionic substance with ions that do not pack well (recall that this packing depends on the ratio of ionic radii of positively and negatively charged ions, which changes the crystal structure). The compound which has the highest melting point has not yet been named or synthesized. Trending Questions. NaF. I thought that I should calculate the molar weight but that won't work, because the correct answer is $\ce{CaF2}$, and $\ce{SrCl2}$ has a greater molar weight. The compound with the highest melting point is CH3 [CH2]14COOH. However, I did find a compound called tantalum hafnium carbide (Ta4HfC5) that has a melting point of 7619oF. Coulombs law states that the force of attraction … Final Thoughts. A: Both NaCl and KCl are ionic. Al2(CO3)3 C12H22O11 C8H18 H2O Get an easy, free answer to your question in Top Homework Answers. How can I tell which compound has the HIGHEST MELTING POINT? The melting point depends on the symmetry of the molecule. Okay, so here we have to determine which Ionic compound has the highest melting point. This value is 632 cojones formal. 1. Which compound has the highest melting point? So 3785 right. Please note that the elements do not show their natural relation towards each other as in the Periodic system. chemistry. Titanium (Ti) Titanium is used in compressors of jet engines (Ti-6Al-4V). Okay, so a table, some quest if will list the latter stages of some ionic compounds. Tantalum hafnium carbide alloy takes the 1st place in our list of the materials with the highest melting point.. Tantalum hafnium carbide alloy (Ta4HfC5) actually refers to tantalum and hafnium pentacarbonate compound, which has the highest melting point among known compounds. The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid.At the melting point the solid and liquid phase exist in equilibrium.The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.. It contains covalent bonds and has a low melting point. The 17 metals with the highest melting point–generally speaking, because they have the strongest bonds. Click here: to convert Celsius to Fahrenheit or Kelvin. 4. (1) CH3OH (3) CaCl2 (2) C6H14 (4) CCl4 Get an easy, free answer to your question in Top Homework Answers. Al2 O3 (2 is the subscript of Al, 3 is the subscript of O) NaCl. arrange these seven substances in order from highest melting point to lowest melting point. Pyridine has a lower symmetry than benzene hence its lower melting point but the melting point again increases with diazine and triazines. a. decane b. Based on coulombs law I would say that the Al2O3 would have the highest boiling point. Problem: Which of the following has the highest melting point?RbFKIKFKBrKCl. The element with the highest melting point is tungsten at 6192oF. 1 decade ago. 89% (447 ratings) FREE Expert Solution. Vapor pressure is determined by the kinetic energy of molecules. Which one of the following molecules has the highest boiling point? Which compound has the highest melting point? LOGIN TO VIEW ANSWER. FREE Expert Solution Show answer. c) Al2O3. A substance that has a melting point of 1074 K conducts electricity when dissolved in water, but does not conduct electricity in the solid phase. Chemistry. Anonymous. So for energy. Naf. a) NaF. Consider The Attraction Between The Ions For Lattice Energy Estimation. 1-butanol is the second because of the OH group and thus, hydrogen bonding. Muhammad Taifoor. The melting point of a compound refers to a particular temperature at which that substance changes from a solid to a liquid. Related Questions in Chemistry. A high melting point results from a high heat of fusion or a low entropy of fusion or a combination. Hint - Do You Think Compounds With A High Melting Point Have High Or Low Lattice Energies? Base your answer to the question on the information below. 2 Answers. The chemical element with the lowest melting point is Helium and the element with the highest melting point is Carbon. Thus among the given alkali metal halides, sodium fluoride has the highest melting point (1298 K). 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