Answer:
Physical Change
Explanation:
Because the filter is removeing the dust by having the air go though a thin material.
Hope it helps!
Answer:
Number 3.
Explanation: The sun produces radiation in the car, which then becomes hot because much radiation is coming in, but little goes out.
Answer:
i can't understand your question haha
Answer:
HF + LiOH = LiF + H2O.
Explanation:
Hydofluoric acid is a weak acid the solution would be slightly basic due to the following equilibrium (condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs.)
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Answer:
Explanation:
percent yield is ratio of actual yield or experimental yield divided by theoretical yield multiplied by 100 .
percent yield of 93.4 % means , the actual yield is 93.4 % what was expected from the reaction on the basis of given chemical reaction .
If in the experimental process , some sodium hydrogen carbonate is left unreacted due to absence of reactant HCl which is also required to obtain product , the percent yield will be increased if the required HCl is also provided .
Hence the percent yield will be increased if required HCl is made available .
