Answer:
B: Cu + O2 → CuO2
Explanation:
The person who aswered this question is wrong, It is not A. I took the test and got it wrong. It has to be B, Cu + O2 → CuO2 because I used all my three attempts on every single answer besides B because I was told it was wrong on here. A, C, and D all showed up incorrect on my three attempts. The other person who answered this must have had a different worded question. There is no other answer left so it had to have been B. Hope this helps.
The accurate combustion reaction is, 2CH4 + O2 = 2CH3OH
• When a substance reacts briskly in the presence of oxygen, the reaction is termed a combustion reaction.
• Combustion is generally known as burning, and the substance, which gets burnt is generally considered as fuel.
• The general products of combustion are water vapor and carbon dioxide with heat.
• In a combustion reaction, the fuel that burns comprises compounds known as hydrocarbons. Hydrocarbons refer to the compounds formed of only hydrogen and carbon. For example, CH4 (methane).
Thus, the reaction of methane (CH4) with oxygen giving CH3OH is the prime example of the combustion reaction.
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