Question

1. in combustion reactions, a substance reacts with oxygen gas to produce heat and light. common fuels involved in combustion include carbon and hydrogen in their chemical formula. we can write the generic reaction for these combustions reactions as follows: c₂h₈ + o₂ → co₂ + h₂o 3. the candle is made of paraffin wax, c₂₅h₅₂. build the chemical equation for the combustion reaction that occurs when the candle burns. c₂₅h₅₂ +? →? +? choices: ch₄, o₂, o, c, h₂o, ho₂, co₂, co

Explanation:

Step1: Recall combustion reaction principle

In a combustion reaction of a hydrocarbon with oxygen, the products are carbon - dioxide and water. The reactants are the hydrocarbon and oxygen gas.

Step2: Identify reactants and products

The hydrocarbon is $C_{25}H_{52}$, and the reactant oxygen is $O_2$. The products are carbon - dioxide ($CO_2$) and water ($H_2O$).

Step3: Write the unbalanced equation

$C_{25}H_{52}+O_2
ightarrow CO_2 + H_2O$

Answer:

$C_{25}H_{52}+O_2
ightarrow CO_2 + H_2O$