2 1-The answer rounded to the correct numberof significant figures afterPerforming the following calculations (2.430+ 1.871x10 -2) × 4.672 is2- The melting point of gold is 1948 °F, thismelting point in degrees of °C is .3- A compound containing only chlorine andoxygen is 53.0% oxygen by mass. Theempirical formula of the compound is . .4- The volume in (mL) needed from 0.353M ofH2SO4 solution to neutralize the solution ofBa(OH)2 with 20.0 mL volume and 0.432Mconcentration. The answer is5- The mass (in g) of Ca in 14600 mg CaCl26- The oxidation number of sulfur in (H2SO4)is .7- The reducing agent in the chemicalreaction is .+2+3 +(aq) + MnO4°(aq) + 8H*(aq) 5FeMn*2(aq) + 4H20(1)5Fe

Melting point of gold = 1948° F Melting point of gold = ? ° C

Answered: 2- The melting point of gold is 1948…

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Chemistry

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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Question

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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