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sherlock19
21.08.2019 •
Chemistry
Relate the changing volume and density of gases. which of these statements is true?
as volume increases, density increases
.as volume increases, density decreases.
as volume increases, density remains unchanged.
as volume decreases, density decreases.
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Ответ:
Ответ:
Explanation:
The Octane rating is the % Octane in the grade that you are buying. In the United States, the octane rating of the cheapest gas is around 85%. In Canada, it is about 87% which in the states is the mid grade.
As soon as you take out the nozzle from its container, you have to press a large colored button to pick the octane rating. The button is so large and the writing is so limited, that you cannot miss the grade. Usually they are put together on the pump like this
87 89 91
I've given you the Canadian numbers; I'm not sure what they are in the US, but the numbers I've used are pretty close.