Which type of reaction occurs without being started by some outside force?

combustion reaction

physical reaction

spontaneous reaction

activation energy reaction

If 6.24 L of a gas at 45.0°C is cooled until its volume decreases to 5.17 L, what is the temperature of the gas in degrees Celsius

Which change increases the amount of iron produced in the equation fe3o4 (s) 4h2 (g) energy?

Approximately how many moles of Al3 + are reduced when 0.1 faraday of charge passes through a cell during the production of Al? (Note: Assume there is excess Al3 + available and that Al3 + is reduced to Al metal only.) A. 0.033 molB. 0.050 molC. 0.

Explain the particle's motions in terms of kinetic-molecular theory.

Calculate the ΔHrxn for the following reaction: CH4 (g) + 2Cl2 (g) - - > CH2Cl2 (g) + 2HCl (g) Use the following reaction and given ΔH's: CH4 (g) + Cl2 (g) - - > CH3Cl (g) + HCl (g), ΔH = - 99.

The energy derived from the movement of H + ions down an electrochemical gradient from the intermembrane space into the matrix is used to drive the synthesis of ATP. How many H + ions must be moved into the matrix for the synthesis of 1 ATP?

Consider two solutions, solution a and solution b. [h+] in solution a is 370 times greater than that in solution b. part a what is the difference in the ph values of the two solutions?

All of the following are possible sources of error in a scientific investigation except for O measuring materials such as mass and volume incorrectly. o recording experimental data incorrectly. o having a constant in your experiment.

Do polyatomic ions have fixed charges?

Which type of organism is used to make bread rise when baking? A. plants B. protists C. yeast D. bacteria