44) What is the coefficient of phosphorus after balancing the following equation?__ P(s) + __ O2 (g) º __ P2O5 (s)(a) 1 (b) 2(c) 4 (d) 5(e) none of the above45) What is the coefficient of chlorine gas after balancing the following equation?__ Fe(s) + __ Cl2 (g) º __ FeCl3 (s)(a) 1 (b) 2(c) 3 (d) 4(e) none of the above46) What is the coefficient of oxygen gas after balancing the following equation?__ HgO(s) º __ Hg(s) + __ O2 (g)(a) 1 (b) 2(c) 3 (d) 4(e) none of the above47) Which of the following types of chemical reactions is illustrated below?2 Sr(s) + 2 H2O(l) º 2 Sr(OH)2 (aq) + H2 (g)(a) combination (b) decomposition(c) single replacement (d) double replacement(e) neutralization48) What is the predicted product from the following reaction? Al(s) + O2 (g) º(a) AlO (b) Al2O(c) AlO2(d) Al2O3(e) Al3O249) Which of the following solid compounds is soluble in water?(a) NiCO3(b) PbCrO4(c) Ag3PO4(d) CuS(e) Ba(OH)250) What are the products from the following double replacement reaction?BaCl2 (aq) + K2SO4 (aq) º(a) BaS and KClO4(b) BaSO3and KCl(c) BaSO3 and KClO4(d) BaSO4 and KCl(e) BaSO4and KClO451) What is the # of oxygen atoms that have a mass of 16.00 g?(a) 1 (b) 8(c) 16 (d) 6.02 x 1023(e) none of the above52) What is the molar mass of aluminum chlorate, Al(ClO3)3?(a) 277.33 g/mol (b) 325.33 g/mol(c) 331.29 g/mol (d) 421.33 g/mol(e) 456.78 g/mol53) What is the mass of 5.55 x 1022formula units of CaCl2?(a) 0.0922 g (b) 0.0977 g(c) 10.2 g (d) 10.8 g(e) 1200 g54) How many helium atoms are in 10.0 L of He gas at STP?(a) 1.35 x 1024atoms (b) 2.69 x 1021atoms(c) 2.69 x 1023atoms (d) 6.02 x 1022atoms(e) 6.02 x 1024atoms55) The first inert gas compound to be synthesized was XePtF6. What is the masspercentage of fluorine in the compound?(a) 4.31% (b) 5.50%(c) 25.9% (d) 29.8%(e) 44.3%56) If 6.00 mol of cobalt combines with 9.00 mol of sulfur, what is the empirical formulaof the cobalt sulfide product?(a) Co2S3(b) Co3S2(c) Co6S9(d) Co9S6(e) none of the above57) Calculate the empirical formula for butyric acid given its percent composition:54.53% C, 9.15% H, and 36.32% O.(a) C1H1O1(b) C2H4O1(c) C2H3O1(d) C5H9O2(e) C6H9O3 please answer all questions from 44 through 57 please explain use the word because to explain why the answer is correct to all questions from 44 through 57  and give correct letter please

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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44) What is the coefficient of phosphorus after balancing the following equation?
__ P(s) + __ O2 (g) º __ P2O5 (s)
(a) 1 (b) 2
(c) 4 (d) 5
(e) none of the above
45) What is the coefficient of chlorine gas after balancing the following equation?
__ Fe(s) + __ Cl2 (g) º __ FeCl3 (s)
(a) 1 (b) 2
(c) 3 (d) 4
(e) none of the above
46) What is the coefficient of oxygen gas after balancing the following equation?
__ HgO(s) º __ Hg(s) + __ O2 (g)
(a) 1 (b) 2
(c) 3 (d) 4
(e) none of the above
47) Which of the following types of chemical reactions is illustrated below?
2 Sr(s) + 2 H2O(l) º 2 Sr(OH)2 (aq) + H2 (g)
(a) combination (b) decomposition
(c) single replacement (d) double replacement
(e) neutralization
48) What is the predicted product from the following reaction? Al
(s) + O2 (g) º
(a) AlO (b) Al2O
(c) AlO2
(d) Al2O3
(e) Al3O2
49) Which of the following solid compounds is soluble in water?
(a) NiCO3
(b) PbCrO4
(c) Ag3PO4
(d) CuS
(e) Ba(OH)2
50) What are the products from the following double replacement reaction?
BaCl2 (aq)
 + K2SO4 (aq) º
(a) BaS and KClO4
(b) BaSO3
and KCl
(c) BaSO3 and KClO4
(d) BaSO4 and KCl
(e) BaSO4
and KClO4
51) What is the # of oxygen atoms that have a mass of 16.00 g?
(a) 1 (b) 8
(c) 16 (d) 6.02 x 1023
(e) none of the above
52) What is the molar mass of aluminum chlorate, Al(ClO3
)3?
(a) 277.33 g/mol (b) 325.33 g/mol
(c) 331.29 g/mol (d) 421.33 g/mol
(e) 456.78 g/mol
53) What is the mass of 5.55 x 1022
formula units of CaCl2?
(a) 0.0922 g (b) 0.0977 g
(c) 10.2 g (d) 10.8 g
(e) 1200 g
54) How many helium atoms are in 10.0 L of He gas at STP?
(a) 1.35 x 1024
atoms (b) 2.69 x 1021
atoms
(c) 2.69 x 1023
atoms (d) 6.02 x 1022
atoms
(e) 6.02 x 1024
atoms
55) The first inert gas compound to be synthesized was XePtF6
. What is the mass
percentage of fluorine in the compound?
(a) 4.31% (b) 5.50%
(c) 25.9% (d) 29.8%
(e) 44.3%
56) If 6.00 mol of cobalt combines with 9.00 mol of sulfur, what is the empirical formula
of the cobalt sulfide product?
(a) Co2S3
(b) Co3S2
(c) Co6S9
(d) Co9S6
(e) none of the above
57) Calculate the empirical formula for butyric acid given its percent composition:
54.53% C, 9.15% H, and 36.32% O.
(a) C1H1O1
(b) C2H4O1
(c) C2H3O1
(d) C5H9O2
(e) C6H9O3

please answer all questions from 44 through 57 please explain use the word because to explain why the answer is correct to all questions from 44 through 57  and give correct letter please 

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