Want this question answered?
please give me answer
actually i cannot answer this question because i have no idea for this question....thank you(2x)
You would need to know if the silver underwent change that left the silver as it was originally, (in this case, having a black substance attach to it) or a change that made the silver into a new substance (like tarnishing). If the silver is still the same before and after the change, it was a physical change. If the substance is changed into a different substance after the change, it is a chemical change.
It is a physical Change. If that answers your question
I'm guessing your question is "Is freezing* a chemical or physical change?" and if it is, it is a physical change any phase change is a physical change
please give me answer
actually i cannot answer this question because i have no idea for this question....thank you(2x)
You would need to know if the silver underwent change that left the silver as it was originally, (in this case, having a black substance attach to it) or a change that made the silver into a new substance (like tarnishing). If the silver is still the same before and after the change, it was a physical change. If the substance is changed into a different substance after the change, it is a chemical change.
It is a physical Change. If that answers your question
I'm guessing your question is "Is freezing* a chemical or physical change?" and if it is, it is a physical change any phase change is a physical change
What is the question exactly? If it is about Uranium having physical and/or chemical properties, the answer is that it has both. Every single element and compound in this universe has both physical and chemical properties.
All elements have both chemical and physical properties. The question as asked has no meaning.
physical, when it is changed by something not at the molecular level it is physical like your question, this is physical, if it were chemical it would be something like pouring acid on it
It is a phiscal change because the combustion doesn't change. I'm in the 7th grade and nobody older than me answered this question! That is a shame!
What is the question exactly? If it is about Uranium having physical and/or chemical properties, the answer is that it has both. Every single element and compound in this universe has both physical and chemical properties.
Answer this question…
Physical change because no new substance is created.