It's fine to assume that as long as you don't write it down. A better way of putting it is to assume that the salt bridge electrolyte does not react with the half cell electrolytes.
His question required it specifically to be some kind of NO3- based electrolyte in the salt bridge though. So it kind of needs to be stated/written down in brackets (assume NO3- is in the salt bridge), or atleast give an indication of how the nitrate concentration would increase.
Give your teacher a pat on the back
Sulfur/nitrogen oxides?Give your teacher a pat on the back
*Insert explanation of acid rain*Sydney is a more industrialized area so there are more cars, factories,ect... These produce carbon dioxide and this carbon dioxide mixes to form carbonic acid.At the blue mountains there isn't as much pollution as there is in sydney. This question requires geography to some extent i do not know. For example if there were mines in blue mountains, factories, volcanoes that would also contribute
There aren't any volcano's in the Blue Mountains, and even if there were, there would be no real purpose of your question, since you'd be giving reasons for why it may be more acidic in the blue mountains, unless your trying to say there's a volcano in the middle of Sydney, even then it's a natural source of sulfur and not really relevant.
LDPE is more transparent due to its' branching structure as a result of the high-pressure method of producing polyethylene. HDPE on the otherhand is produced via the ziegler-natta process which results in unbranched chains of polyethylene. Hence, LDPE is more transparent due to its' larger room for holes between the branching, whereas HDPE is very dense and so is far less transparent than LDPE.
Doesn't really address the issue because density of HDPE and LDPE are almost identical so you'd expect a similar amount of those holes that you talked about.
Really? Oh I dunno if it's not the density, I thought that was the whole point
Really? why is one called low density and the other high density then? Surely the name indicates a significant difference in the density of both polymers. L.D.P.E is a branched structure which is less dense allowing more transparency then the high density linear structure of H.D.P.E which is more "compact" thus less transparency
The density of HDPE is actually only slightly higher than LDPE.
It's got to do with the crystalline structure yes.
