Which reaction of hydrocarbons releases energy?

Sam is studying the halogenation of alkanes. She knows that chlorination of methane can produce a mixture of products. What is the final product when all hydrogen atoms are substituted by chlorine?

Nora is studying the halogenation of alkanes. She knows that UV light is required for halogenation. What is the role of UV light in halogenation?

Which hydrocarbon has the molecular formula C2H2?

Ahmed is studying hydrocarbons. He learns that alkanes are saturated hydrocarbons with single bonds. What is the general formula for alkanes?

Incomplete combustion of hydrocarbons produces:

Oliver is learning about the preparation of alkanes by the cracking of larger hydrocarbons. He knows that cracking produces smaller alkanes and alkenes. What is the purpose of cracking?

General formula of alkanes is:

George is studying complete combustion of methane. He writes the equation: CH4 + 2O2 → CO2 + 2H2O. What is the product of complete combustion?

Fatima is learning about the combustion of alkanes. She knows that alkanes burn in oxygen to produce carbon dioxide and water. What type of reaction is combustion?