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alisha [4.7K]
3 years ago
10

Please someone answer

Chemistry
2 answers:
elena-s [515]3 years ago
7 0
(1) is true

energy CANNOT be created or destroyed, but it CAN be transferred and transformed.
Margarita [4]3 years ago
4 0

1 is true

energy cannot be created or destroyed

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A hydrogen electron is elevated from level 1 to level 2. Another electron is elevated from level 2 to level
BaLLatris [955]

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3 years ago
Consider the balanced chemical equation that follows. You are asked to determine how many moles of water you can form from 4 mol
kodGreya [7K]

<u>Answer:</u> The correct answer is 4molH_2\times \frac{2molH_2O}{2molH_2}=4 molH_2O

<u>Explanation:</u>

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For the given chemical equation:

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6 0
3 years ago
An element's atomic number is 87. how many protons would an atom of this element have
andreev551 [17]
atomic number is equal to proton number
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5 0
4 years ago
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