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Review sheet for compounds and formulas. Answer key is on last page
Typology: Exercises
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Name the following ionic compounds:
8 4) Which of the following pairs is incorrectly matched? formula bond type A) CuO ionic B) BBr 3 nonpolar covalent C) CCl 4 polar covalent D) KCl ionic E) IF nonpolar covalent 1 85 ) Which of the following pairs is incorrectly matched? formula bond type A) MgO ionic B) CoS ionic C) CH 4 polar covalent D) NF 3 polar covalent E) N 2 nonpolar covalent 8 7) Elements in groups IIA and VA of the periodic table possess, respectively, how many valence electrons? A) 2 and 6 B) 2 and 2 C) 6 and 2 D) 3 and 4 E) 2 and 5 8 8) Which of the following statements about the noble gases is incorrect? A) All have very stable electron arrangements. B) They are the most reactive of all gases. C) All have 8 valence electrons. D) All exist in nature as individual atoms rather than molecular form. 8 9) Which of the following statements concerning double covalent bonds is correct? A) They always involve the sharing of 2 electron pairs. B) They are found only in molecules containing polyatomic ions. C) They occur only between atoms containing 4 valence electrons. D) They are found only in molecules containing S. Name the following acids and bases: 90 ) NaOH _______________________________________ 91 ) H 2 SO 3 _______________________________________ 92 ) H 2 S _______________________________________ 93 ) H 3 P _______________________________________ 9 4) H 3 PO 4 _______________________________________ 9 5) NH 3 _______________________________________ 9 6) HCN _______________________________________ 9 7) Ca(OH) 2 _______________________________________ 9 8) Fe(OH) 3 _______________________________________ Write the formulas of the following acids and bases:
99 ) hydrobromic acid ______________________________________ 100 ) hydrofluoric acid _______________________________________ 10 1) carbonic acid _______________________________________ 102 ) lithium hydroxide _______________________________________ 103 ) nitrous acid _______________________________________ 104 ) cobalt (II) hydroxide _______________________________________ 105 ) sulfuric acid _______________________________________ 106 ) beryllium hydroxide _______________________________________
4 4) calcium bromide CaBr 2 4 5) gallium (III) chloride GaCl 3 4 6) sodium hydride NaH 4 7) beryllium hydroxide Be(OH) 2 4 8) zinc carbonate ZnCO 3 4 9) manganese (VII) arsenide Mn 3 As 7 5 0) copper (II) chlorate Cu(ClO 3 ) 2 5 1) cobalt (III) chromate Co 2 (CrO 4 ) 3 5 2) ammonium oxide (NH 4 ) 2 O
8 2) Electronegativity is a concept that is useful along with other concepts in ________. A) deciding how many electrons are involved in bonding B) deciding if double bonds are present in a molecule C) formulating a statement of the octet rule D) determining the number of single bonds present in a molecule E) predicting the polarity of a bond 8 3) Which statement about electronegativity is incorrect? A) Within a periodic table group, electronegativity increases from bottom to top. B) Metals generally have higher electronegativity values than nonmetals. C) Within a periodic table row, electronegativity increases from left to right. D) Fluorine is the most electronegative atom of all the elements. 8 4) Which of the following pairs is incorrectly matched? formula bond type A) CuO ionic B) BBr 3 nonpolar covalent C) CCl 4 polar covalent D) KCl ionic E) IF nonpolar covalent 85 ) Which of the following pairs is incorrectly matched? formula bond type A) MgO ionic B) CoS ionic C) CH 4 polar covalent D) NF 3 polar covalent E) N 2 nonpolar covalent 8 7) Elements in groups IIA and VA of the periodic table possess, respectively, how many valence electrons? A) 2 and 6 B) 2 and 2 C) 6 and 2 D) 3 and 4 E) 2 and 5 8 8) Which of the following statements about the noble gases is incorrect? A) All have very stable electron arrangements. B) They are the most reactive of all gases. C) All have 8 valence electrons. D) All exist in nature as individual atoms rather than molecular form. 8 9) Which of the following statements concerning double covalent bonds is correct? A) They always involve the sharing of 2 electron pairs. B) They are found only in molecules containing polyatomic ions. C) They occur only between atoms containing 4 valence electrons. D) They are found only in molecules containing S. Name the following acids and bases: 90 ) NaOH sodium hydroxide 91 ) H 2 SO 3 sulfurous acid