Which one has stronger Ionic bond, KCl or RbI? Why?
KCl and KBr are both ionic solids. A mixture of KCl and KBr has a mass of 3.595 g. When this mixture is heated in the presence of excess Cl2, all of the KBr is converted to KCl. If the total mass of KCl present after this reaction is 3.129 g, what percentage (by mass) of the original mixture was KBr? (HINT: Be sure that you understand why the mass of the sample has decreased. It may help if you...
Which has the stronger bond, the H-C bond in CH4or the H-Si bond in SiH4 ? Explain your answer based on a Lewis structure.
Which of the choices explains why one nucleophile is stronger than another nucleophile? More than one answer is possible. It is also possible that NONE of these is correct. 7 A stronger nucleophile is larger than another nucleophile. A stronger nucleophile has a less electronegative nucleophilic atom than another nucleophile. A stronger nucleophile has less steric hindrance than another nucleophile. Using this information, in methanol, CH3OH, which of the following is a stronger nucleophile, trimethylamine, (CH3)3N, or dimethylether, (CH3)20? SS...
7. If an ionic bond is stronger than a dipole-dipole interaction, how can water dissolve an ionic compound? None of these The ion-dipole interactions of a bunch of water molecules gang up on the strong ionic bond and pull it into the solution. The ions never overcome their interatomic attraction and therefore are not soluble. The ionic bond is weakened by the ion-dipole interactions and ionic repulsion ejects the ions from the crystal. The ion-dipole...
Which of the following two compounds has the stronger nitrogen-nitrogen bond? The shortest nitrogen bond H_2 NNH_2, HNNH
In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (Li–F), 2.82 Å (Na-Cl), 3.30 Å (K–Br), and 3.67 Å (Rb–I), respectively. . Assuming we have an accuracy of 0.04 Å in the measurement, would you say that the two sets of ion–ion distances are the same or not? Why, or why not?
4. Which of the two compounds shown has the stronger N-N bond? The shorter N-N bond? Show your reasoning- H2NNH2 HNNH
Which of the following ionic compounds has the highest (most negative) lattice energy? SrF2 MgF2 SrI2 KCl NaF LiF CaCl2
Predict which of the following has a covalent bond (refer to Periodic Table). HCl KCl NaCl all of the above none of the above Draw the structural formula for the chloride ion, ClO_2^-, and state the type of bonds in a chloride ion. 1 single bond and 1 double bond 2 single bonds 1 single bond and 1 triple bond none of the above Predict which of the following has a covalent bond (refer to Periodic Table) CoS CaS CdS...
Are the bonds in each of the following substances ionic, nonpolar covalent, or polar covalent? (a) KCl ionic nonpolar covalent polar covalent (b) P4 ionic nonpolar covalent polar covalent (c) BF3 ionic nonpolar covalent polar covalent (d) SO2 ionic nonpolar covalent polar covalent (e) Br2 ionic nonpolar covalent polar covalent (f) NO2 ionic nonpolar covalent polar covalent Arrange the substances with polar covalent bonds in order of increasing bond polarity. (Use the appropriate <, =, or > symbol to separate...