3. Chemical Reactions

Which of the following are the main products formed during the complete combustion of ethane (C_2H_6)?

In the context of the carbon cycle, what role does combustion play?

What environmental problem is primarily caused by the burning of fossil fuels?

When fossil fuels, which are primarily hydrocarbons, are burned during combustion analysis, what substance do they react with?

In a typical combustion reaction of a hydrocarbon in excess oxygen, which product(s) are most likely to be observed?

When 0.112 g of heptene, C7H14, is burned in a bomb calorimeter, the temperature rises by 4.99 °C. The heat capacity of the calorimeter is 2.46 kJ/°C. Calculate the combustion energy (ΔE) for heptene, C7H14, in kJ/mol. Express your answer in kJ/mol.

Which of the following reactions does not produce carbon dioxide gas?

Calculate the enthalpy change (ΔH) for the combustion of propane gas (C3H8) when water is produced as a gas, given that ΔH_comb for the formation of liquid water is -2219 kJ/mol and the enthalpy of vaporization (ΔH_vap) for water is +44 kJ/mol.

Which of the following is another name for combustion?

When a hydrocarbon burns completely in air, which products are typically formed?

In the balanced combustion reaction of nitric oxide (2 NO + O_2 → 2 NO_2), how many chemical bonds are broken in the reactants per mole of reaction?

Which of the following processes releases carbon dioxide to the atmosphere?

During combustion analysis, how does matter change when a hydrocarbon burns in oxygen, and why does this occur?

Which product of incomplete combustion is primarily responsible for giving photochemical smog its yellowish color?

If a substance reacts with oxygen, the chemical reaction is most likely a: