An ordered list of chemical substances is shown: chemical substances: 1. cuo 2. o2 3 3. co2 4. no2 5. fe6. h2o which substances in the list can be some of the reactants and products in the same combustion reaction? a) 1, 2, and 3 b) 2, 3, and 6 c) 1, 4, and 5 d) 1, 2, and 5

Answer : The correct option is, (B) 2, 3 and 6.

Explanation :

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

In general,

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

In the given list, is a reactant and are the products.

Therefore, the correct answer is, (B) 2, 3, and 6

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements