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dusya [7]
3 years ago
5

For a science experiment, a student rubs a mineral against a porcelain plate. The students has just performed......?

Biology
2 answers:
stepladder [879]3 years ago
7 0
A mineral streak experiment! 
meriva3 years ago
5 0

It is a Streak test.





                 

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1H^2+1H^2 ====> 2He^4 + energy

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