The correct answer is 33% i tried it on a lesson.
Answer:
Hydro power
Advantage- Clean source
Safe
Disadvantage- Expensive
Environmental consequences
Coal
Advantage- Easy to find
Affordable
Disadvantage- Non renewable
Pollution
Explanation:
I helped you out with two of them
<span>Based on solubilities you can separate naphthalene and NaCl by adding the mixture to a volume of water. NaCl is highly soluble in water, so it will dissolve completely, while the insoluble naphthalen will remain solid. Next your filter the solution, washing the solid with pure water to eliminate all the NaCl from it. The NaCl will remain is solution, and you can obtain it by evaporating the water. The other method to separate naphthalene and NaCl is based on sublimation property of naphthalene: you can permit that naphthalene sublimes freely or use vacuum to accelerate the process. You use a closed vessel to catch all the gas, while the NaCl will remain solid.</span>
Answer:
6.273×10²³
Explanation:
hope this is useful friend
Answer:
56.47%
Explanation:
In this question, we are given;
- Theoretical yield of sulfur dioxide as 680 g
- Actual yield of sulfur dioxide as 384 g
We are required to calculate the percent yield for the reaction;
- We need to know how percent yield is calculated;
- % yield = (Actual yield ÷ Theoretical yield) × 100%
Therefore;
In this case;
% yield = (384 g ÷ 680 g) × 100%
= 56.47%
Thus, the percent yield for the reaction is 56.47%
