The thermochemical equation for the reaction of pentane and oxygen is shown below. What does the equation tell you about the reaction? C5H8(g)→ 5CO2(g) + 6H20(g)+3536 kJ
A. It is exothermic.
B. It has a low activation energy.
C. It has a high activation energy.
D. It is endothermic.

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit