Answer: 5… I think
Explanation: sorry if I’m wrong.
I believe the answer is b
The best way to determine the presence of halogens is by adding a silver nitrate solution to the solvent. This is because all halogens, except for fluorine, produce a precipitate with silver nitrate solution.Chlorine produces a white precipitate, bromine produces a pale cream colored precipitate and iodine produces a yellow colored precipitate.
If further testing is required, concentrated sulfuric acid may be added. The sulfuric acid will produce misty fumes with fluorine and chlorine, brown fumes with bromine and purple fumes with iodine.
hope this helped :)
alisa202
Answer:
<em>b. False</em>
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Explanation:
Increasing the frequency of muscle stimulation causes wave summation to occur, which causes an overlap of muscle twitch. When this muscle summation happens, the force generated in the muscle increases. This means that stimulating the muscle every 0.5 seconds will generate less muscle contraction force than when stimulated every 0.05 seconds
Answer:
B. the water table
Explanation:
The question above is related to the topic on<em> "Groundwater." </em>
Groundwater is considered<em> "fresh." </em>It falls into the soil and gets soaked in it. It can stay stored for many years. It is very beneficial because it serves as a source of water for many residential places.
The storage of groundwater relies on two zones:<em> unsaturated zone</em> and<em> saturated zone.</em> The unsaturated zone is the first layer under the surface area of the land. It is followed by the<em> "water table,"</em> which lies a little farther from the land surface. After which is the saturated zone where you can find particles of different rocks.
