Answer:A model may improve as scientific advancements are made, is the correct statement. As new information becomes available, the model may become more accurate or improved.
Explanation:
Answer:
A) 2.2 mol
Explanation:
Given data:
Number of moles of O₂ produced = ?
Number of moles of N₂O₅ decomposed = 4.3 mol
Solution:
Chemical equation:
2N₂O₅ → 4NO₂ + O₂
Now we will compare the moles of N₂O₅ and O₂.
N₂O₅ : O₂
2 : 1
4.3 : 1/2×4.3 = ×2.2
Thus, from 4.3 moles of N₂O₅ 2.2 moles of O₂ are produced.
Answer:
a is unbalanced and bcd is balanced
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