All three students are correct,
CHâ‚‚+ Oâ‚‚-> CO+Hâ‚‚O is combustion reaction
What is a chemical reaction?
- A process in which one or more substances also called reactants, are converted to one or more different substances, known as products.
- yes, Jenny's statement is correct. Both CHâ‚‚ and O2 are reactants and CO + Hâ‚‚O are products.
    ⇒ Reactants - The substances that go into a chemical reaction
    ⇒ Products -  The substances produced at the end of the reaction
- Jeffery's statement is also correct. Reactant side has Oâ‚‚ which has 2 a oxygen atoms while product side has Hâ‚‚O and CO, both have 1 oxygen in each making a total of 2 oxygen atoms on product side.
- Lisa's statement is also correct. In a chemical reaction bonds are broken within reactant molecules and new bonds are formed within product molecules in order to form a new substance ( here  H₂O and CO )
Thus we can conclude that all three students were correct.
Learn more about chemical reaction at https://brainly.com/question/11231920
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