Here, this is what I have. :)
A net ionic equation simply means to cancel out any ions which appear on both sides of the chemical equation that are not involved in the reaction - they're called spectator ions.
We'll first write out the full ionic equation, showing all ions and compounds formed, then rewrite and not include spectator ions.
2FeBr3(aq) + 3Na2S(Aq) --> Fe2S3(s) + 6NaBr(aq) [original eqation]
2Fe3+(aq) + 6Br-(aq) + 3Na+(aq) + 3S2-(aq)--> Fe2S3(s)+6Na+(aq) + 6Br-(aq)
[full ionic equation]
2Fe3+(aq) + 3S2-(aq)--> Fe2S3(s) [net ionic equation]
notice that Br- and Na+ appear unreacted on both sides of the full ionic equation, so they cancel out and do not appear in the net ionic.
*Please give me a 'brainliest' if you can! Thanks!
Since there's specific heat, you should use Q=mc△T. Depends on if this question also involves phase change or not, you might will need Lf (latent heat of fusion) or Lv (latent heat of vaporisation).
Answer:
C) atmosphere → plants → animals → soil
Explanation:
The third choice provides the correct path through which carbon is cycled in nature.
Carbon passes from the atmosphere to plants then to animals and finally to the soil.
- Plants uses carbon dioxide from the atmosphere to manufacture their food.
- The food is made up of giant carbon chains which also provides nourishment for animals.
- When animals digest plant matter, they obtain energy for their process.
- The waste is passed into the soil .
Explanation:
Sol. 450 ml there is LiCl 200 g
Sol. 1000 ml there is LiCl 200/450×1000
= 444.44 g
Molar = g/molar mass = 444.44/42.394 = 10.48 M
