Chemistry
02.05.2021 01:32
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Rain puddle drying up, chemical or physical change
Rain puddle drying up, chemical or physical change
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robert7248
4,4(7 marks)
Physical change because it's getting smaller as it disappears.
Evey4851
4,7(64 marks)
When a proton is added to the germanium nucleus, then its atomic number becomes 33, which is the atomic number of arsenic.
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