An ordered list of chemical substances is shown. 1. cuo 2. o2 3. cu2o 4. n2 5. c2h5nh2 6. li2o which substances in the list can be some of the reactants and products in the same combustion reaction? answer choices: a. 1, 2, and 4 b. 2, 3, and 6 c. 2, 4, and 5 d. 1, 2, and 5

Answer : The correct option is, (C) 2, 4 and 5.

Explanation :

Combustion reaction : It is a type of reaction in which a hydrocarbon react with an oxygen molecule to give carbon dioxide, water as a product.

For example : Methane react with oxygen to give carbon dioxide and water.

In the given list of chemical substances, are in oxide form. They can not be both reactant and product of a single combustion reaction.

In the given list, is the only hydrocarbon which shows a combustion reaction. That means react with to give and as a product.

The balanced combustion reaction of is,

Therefore, the correct answer is, (C) 2, 4, and 5.

your answer would be a. 12.5 kg