Is ammonia pure substance or mixture?​

ammonia is judged to be a pure element due to because it is regarded as  a compound. In Ammonia, the substances are nitrogen and hydrogen. So there are no additional substances, elements, etc to create it.

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he employment of the compan

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for twelve months, and those who leave

sooner, or do not comply with all these

regulations, will not be entitled

to a regular discharge.  

sonar maybe? ? i dont know the choices