Chemistry, 25.02.2021 21:00, powelltyr2002
Consider the following intermediate chemical equations.
3 equations. 1: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas Delta H 1 equals negative 393.5 kilojoules. 2: 2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas Delta H 2 equals negative 566.0 kilojoules. 3: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas delta H 3 equals 483.6 kilojoules.
The overall chemical equation is Upper C (s) plus upper H subscript 2 upper O (g) right arrow upper C upper o (g) plus upper H subscript 2 (g).. To calculate the final enthalpy of the overall chemical equation, which step must occur?
A. Reverse the first equation, and change the sign of the enthalpy. Then, add.
B. Reverse the second equation, and change the sign of the enthalpy. Then, add.
C. Multiply the first equation by three, and triple the enthalpy. Then, add.
D. Divide the third equation by two, and double the enthalpy. Then, add.
Answers: 1
Chemistry, 22.06.2019 13:10, dookiefadep5n1tt
What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction
Answers: 1
Chemistry, 22.06.2019 13:30, kassandrarosario1115
How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
Answers: 1
Chemistry, 22.06.2019 20:40, larkinc2946
What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.
Answers: 1
Consider the following intermediate chemical equations.
3 equations. 1: upper C solid plus upper o...
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
English, 18.09.2020 09:01
Spanish, 18.09.2020 09:01
Physics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Biology, 18.09.2020 09:01