Answer:
0.220 mol He
Explanation:
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Based on the ideal gas equation of state:
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When droplets of water in the atmosphere act like prism the color in the sunlight undergo interferance, making rainbows. ( This is how rainbows form)
True!
For example:
The atomic mass of carbon is 12.011 (i think) and the weight of carbon is 12. But with C13 and C14 being a little higher, it makes the average higher. Random fact: C14 is used for carbon dating.
3Ba + N2 -----> Ba3N2
Ba is in the second group and metal, its charge = +2 in the compound.
N is non-metal, it is in 15th group, so it has 5 electrons on the last level, so it can take 3 electrons more(8-5=3). N has charge (-3) in compound.
Ba and N form compound Ba3N2.
By looking closely into the given balanced chemical reaction, it can be deduced that the number of moles needed for every mole of FeO is only 2/3. Calculating for the number of moles of aluminum,
x = (13.2 moles FeO)(2 mols Al/3 moles FeO)
x = 8.8 moles Al
Answer: 8.8 moles Al
