Question 1 of 15 2 Points What is another name for a pure substance? Answer here
1 answer:
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Element 87 francium have the highest atomic size, so in short the closest element to francium have the high atomic size.
Answer:
0.14 moles of Fe₂O₃
Explanation:
Given parameters:
Number of moles of Fe = 0.27moles
Unknown:
Number of moles of Fe₂O₃ = ?
Solution:
To solve this problem, we are going to the work from the known specie to the unknown using their number of moles.
We first obtain the balanced equation of the reaction;
4Fe + 3O₂ → 2Fe₂O₃
The equation above is balanced;
4 moles of Fe produced 2 moles of Fe₂O₃
0.27 moles of Fe will produce = 0.14 moles of Fe₂O₃
Answer:
<h3>The answer is 8.98 g/cm³</h3>Explanation:
The density of a substance can be found by using the formula
From the question
mass of cube = 150 g
volume = 16.7 cm³
We have
We have the final answer as
<h3>8.98 g/cm³</h3>Hope this helps you