2- The melting point of gold is 1948 °F, this melting point in degrees of °C is . . ....

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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2

1-The answer rounded to the correct number
of significant figures after
Performing the following calculations (2.430
+ 1.871x10 -2) × 4.672 is
2- The melting point of gold is 1948 °F, this
melting point in degrees of °C is .
3- A compound containing only chlorine and
oxygen is 53.0% oxygen by mass. The
empirical formula of the compound is . .
4- The volume in (mL) needed from 0.353M of
H2SO4 solution to neutralize the solution of
Ba(OH)2 with 20.0 mL volume and 0.432M
concentration. The answer is
5- The mass (in g) of Ca in 14600 mg CaCl2
6- The oxidation number of sulfur in (H2SO4)
is .
7- The reducing agent in the chemical
reaction is .
+2
+3 +
(aq) + MnO4°(aq) + 8H*(aq) 5Fe
Mn*2(aq) + 4H20(1)
5Fe
Transcribed Image Text:1-The answer rounded to the correct number of significant figures after Performing the following calculations (2.430 + 1.871x10 -2) × 4.672 is 2- The melting point of gold is 1948 °F, this melting point in degrees of °C is . 3- A compound containing only chlorine and oxygen is 53.0% oxygen by mass. The empirical formula of the compound is . . 4- The volume in (mL) needed from 0.353M of H2SO4 solution to neutralize the solution of Ba(OH)2 with 20.0 mL volume and 0.432M concentration. The answer is 5- The mass (in g) of Ca in 14600 mg CaCl2 6- The oxidation number of sulfur in (H2SO4) is . 7- The reducing agent in the chemical reaction is . +2 +3 + (aq) + MnO4°(aq) + 8H*(aq) 5Fe Mn*2(aq) + 4H20(1) 5Fe
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