Explanation: A river drainage basin is an area drained by a river and all of its tributaries. A river basin is made up of many different watersheds. A watershed is a small version of a river basin. Every stream and tributary has its own watershed, which drains to a larger stream or wetland.
Answer:
To calculate the number of significant figures in a number with decimal,
start at the first non-zero digit in the number and count the total number of digits till the end
hence, in this number:
we will have 6 significant figures
Answer:
D
Explanation:
Its the only answer that actually makes sense and i got it right on the quiz.
From the conservation of mass, matter is not created nor
destroyed. So ponder it this way, for example I put one piece of toast in a
toaster, but when it is done I had two pieces, that makes no sense right? Same
thing with a chemical reaction but in molecular terms, all things must stay constant.
If you put a convinced amount you have to get that quantity back, not less or
not more in broad terms.
Let's rewrite the reaction for clarity:
2 SO₂(g) + O₂(g) ⇆ 2 SO₃(g) δhºrxn = –198 kj/mol
The equilibrium constant of a reaction is the ratio of the concentration its products to its reactants which are raised to their respective stoichiometric coefficients. For this reaction, the K would be
K = [SO₃]²/[SO₂]²[O₂]
To get a larger K, the products must be greater than the reactants. This means that the forward reaction must be favored to yield more of the product SO₃. There are different ways to do this: by manipulating the pressure, concentration or temperature.
For the concentration, you should add more amounts of the reactants. For the pressure, we should increase it. This is because the product side has only 2 moles of gas compared to 3 moles of gas in the reactants. So, it wall have more room for the product even at a higher pressure. Lastly, since the reaction is exothermic manifested by the negative sign of δhºrxn , the reaction would favor the forward reaction at high temperatures.
