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Dmitrij [34]
2 years ago
15

What is the answer helpnme plz

Chemistry
1 answer:
kykrilka [37]2 years ago
8 0
MgH2 + 2 H2O → Mg(OH)2 + 2 H2
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In this question, it is given that, 38^88Sr decays to 34^84Kr, which means there is an atomic number decrease by 4, 38 to 34, and atomic mass decreases by 4 as well 88 to 84.

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