Which one of the following is a reasonable formula for a covalent compound?a. NaClb. CF4C. CaCld. SiBr3O a. NaClO b. CF4Oc CaciOd. SIBr3

Alkali metals and alkaline earth metals generally forms ionic compounds . In covalents compounds ,…

Answered: a covalent com a. NaCl b. CF4 C. CaCl…

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter13: Structure And Shape

Section: Chapter Questions

Problem 43E

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Using the bond energies in Table 7.2, determine the approximate enthalpy change for each of the following reactions: (a) Cl2(g)+3F2(g)2ClF3(g) (b) H2C=CH2(g)+H2(g)H3CCH3(g) (c) 2C2H6(g)+7O2(g)4CO2(g)+6H2O(g) .
What is lattice energy? A.Lattice energy is ionization energy + electron affinity/2 B.Lattice energy is the standard enthalpy of formation of an ionic solid C.Lattice energy is the energy needed for an ionic solid to dissolve D Lattice energy is the energy of formation of one mole of ionic solid from gaseous ions
Which compound has the highest lattice energy A. NaCl B. NaBr C. MgCl2 D. MgBr2
1. Which is an example of a non-polar molecule that contains polar covalent bonds? A. H2O B. NH3 C. N2 D. CBr4 2. Which of the following molecules dissolves in water? A. C6H6 B. CBr4 C. CH3OH D. CCl4 3. SO3 molecules are ____. A. nonpolar B. either C. polar D. None of them 4. A polar molecule is one in which there is a separation of charge caused by ___. A. an uneven number of electron pairs B. an average distribution of electrons C. a non-uniform electron distribution D. a complete loss of electrons 5. Which of the following molecule is not polar? A. HF B. water (H2O) C. ammonia (NH3) D. H2
Formalin is 37% formaldehyde in water solution. Formaldehyde is soluble in water because it is alan* polar covalent compound. non-polar covalent compound. ionic compound. strong electrolyte. When sodium reacts with water, the products are (a) sodium oxide, (b) hydrogen gas, (c) sodium hydroxide. (c) oxygen gas a and b b and c c and d a and d Which of the following group 1 elements has the lowest melting point? * Na Cs K Rb O O
A.) for which of the following compiles represent a binary ionic compound ? a.) CaCO3 b.) KF C.) O2 D.) H2O2 b.) which of the following represent a binary molecular compound a.) Mg(OH)2 b.) C6H6 c.) CsCl d.) F2
Which one of the following ions has the greatest lattice energy? A. KCI = KF = KBr = KI B. KCI C. KI D. KBr E. KF
Which physical change is endothermic? O A. CO2(t) - CO2(s) O B. CO2(g) - CO2(s) O C. CO2(s) – CO2(g) O D. CO2(g) - CO2(t)
Which statement is NOT correct regarding the lattice energy of an ionic solid? a.Lattice energy of MgO is higher than NaCl, due to MgO's higher ionic charge and smaller ionic sizes b.As the lattice energy increases melting point increases c.It is the energy change when one mole of an ionic compound is created under standard conditions from its pure elements d.It is the energy change on formation of one mole of an ionic compound from its constituent ions in the gaseous state e.As the lattice energy increases solubility decreases
Consider the Lewis structures for ethanol, the alcohol present in alcoholic drinks. Which of the following statements is/are TRUE? H H H-C-C-O-H H H ethanol a. The H-O bond is more polar than the C-O bond. b. Ethanol has at least one polar bond and is a polar molecule c. both a and b d. neither a nor b
1. Which is the formula of the compound formed by barium and phosphorus? a. BaP3b. Ba2P Ba3P2c. Ba3Pd. Ba2P 2. The bond between Br atoms in a Br2 molecule is _______ and is formed by the _________ of two valence electrons. a. covalent ; sharingb. covalent; transferc. ionic ; transferd. ionic ; sharing
Which one of the following has both ionic and covalent bonding? A. NaCl B. NaClO4 C. H2O D. CH4

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a covalent com a. NaCl b. CF4 C. CaCl d. SiBr3 O a. NaCi Ob. CF4 Oc Caci Od. SIB13