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Vladimir79 [104]
2 years ago
7

A reaction requires 2.5 moles of zinc oxide. how many grams would this equate to?​

Chemistry
1 answer:
Nady [450]2 years ago
4 0

Answer: 45.038

Explanation: 2.016 H (2*1.008) + 15.999 O (1*15.999)

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Describe what happens to the mass number and the atomic number of a nuclide during alpha decay.
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Answer:

The answer to your question is: The mass number will be 4 units lower.

Explanation:

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When an alpha particle is released, the original atom loses 2 protons and and 2 neutrons an we can see in the example.

                             ²²⁶ ₈₈ Ra  ⇒   ²²² ₈₆ Rn   +   ⁴₂ He

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P₄ + 10Cl₂ ---> 4PCl₅
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3 years ago
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