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Can someone list the observable changes that indicate a physical change has occurred? Same for chemical change?
asked
Dec 9, 2017
Chemistry
middle-school
1
answer
3
votes
209k
views
Why did Russia mobilize against Austria?
asked
May 28, 2017
Social Studies
high-school
1
answer
3
votes
50.7k
views
Why were spain's monarchs interested in the proposal columbus made to them?
asked
Mar 12, 2017
Social Studies
high-school
1
answer
0
votes
148k
views
48 is how many percent of 70
asked
Feb 19, 2017
Mathematics
high-school
1
answer
5
votes
161k
views
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