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Maru [420]
3 years ago
13

When a radioactive atom emits an alpha particle, the mass number of the radioactive atom

Chemistry
2 answers:
ANTONII [103]3 years ago
8 0

Answer:

c

Explanation:

did it

arlik [135]3 years ago
5 0

Answer:

d or c

Explanation:

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A powder sample weighing 250 g and having a surface area of 1 m2/g is dispersed in 1 L of water. After 10 minutes, 0.4 g of the
lisabon 2012 [21]

Answer:

a)

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b)

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a)

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b) Time taken

Time taken to sink

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6 0
3 years ago
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