30% should be the percentage of oxygen if the total mass of fe2o3 is 160.
Answer:
A molecule is a group of two or more atoms that are held together by chemical bonds.
Explanation:
Answer:
What happens when it is squeezed is that its volume increases, the pressure of the material increases.
Explanation:
This is due to the fact that the elastic modulus of the sponge is high and withstands broad forces without deforming its structure, since the force is made within the proportional limit of its particles without modifying or permanently deforming them, that is why when stopping doing pressure or force on it its shape returns to being the original, this also happens due to the phenomenon of resilience
The one that isn't considered an aspect of environmental health such as smog<span />
200 moles of nitric acid.
Explanation:
We have the following chemical equation:
3 NO₂ + H₂O → 2 HNO₃+ NO
Taking in account the chemical equation, we devise the following reasoning:
if 3 moles of nitric dioxide (NO₂) produce 2 moles of nitric acid (HNO₃)
then 300 moles of nitric dioxide (NO₂) produce X moles of nitric acid (HNO₃)
X = (300 × 2) / 3 = 200 moles of nitric acid.
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number of moles
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