<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 Find the number of moles of HCl formed when 2 moles of C2H6 are combined with a certain number of moles of Cl2, resulting in 2 moles of HCl. How many moles of Cl2 were combined? Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
1
Find the number of moles of HCl formed when 2 moles of C2H6 are combined with a certain number of moles of Cl2, resulting in 2 moles of HCl. How many moles of Cl2 were combined?
test