C2H6 is a chemical compound
By scientific question, it really just means create a normal question. The example would be:
How will gas be affected if the temperature in an enclosed container is to be changed?
There are mannnyyy ways how to write a question for this, you just have to make sure you write what you are changing and how you are changing it, oh and make it sound smart haha.
3NF3 + 5H2O → HNO3 + 2NO + 9HF
Nitrogen fluoride reacts with water to produce nitric acid, nitric oxide, and hydrogen fluoride. The reaction slowly takes place in a boiling solution.
CH2CH2 + H2O → CH3CH2OH
Ethylene is a hydrocarbon with water that creates ethanol and ethanol is an alcohol
Answer:
The answer is Conduction
Explanation:
Conduction is the process of heat being transferred between objects through direct contact, and it's the most common type of heat transfer.
Answer:

Explanation:
A reaction is spontaneous at all temperatures by the following combinations:
=> A negative enthalpy change (
)
=> A positive entropy change (
)
See the attached file for more better understanding!