<span>It will take 409 liters of water to dissolve 1.00 grams of barium sulfate at 20°C
Barium sulfate is almost insoluble in water. At 20°C, only 2.448 x 10^-3 grams will dissolve in 1 liter of water. So take the amount of barium sulfate and divide by its solubility.
1.00 / 2.448 x 10^-3 = 408.49 liters.
Since we only have 3 significant figures, round the result to 3 figures.
409 liters</span>
The answer for #1 description is Hypothesis: Redi's hypothesis is that flies can only be produced by other flies.
The answer for #2 description is Control: The control group was the meat in the container with no covering, thus leaving it open to the flies.
The answer for #3 description is Independent Variable: The independent variable is covering the meat in the container with a mesh so the flies can't get to it.
The answer for #4 description is Dependent Variable: The dependent variable is the presence of maggots on the meat that is observed in response to the independent variable.
The answer for #5 description is Constants: The constants or factors that are kept the same for both groups are the location of containers and temperature, so that it was not one of these that caused the change.
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Answer:
Plasma is a state of matter in which an ionized gaseous substance becomes highly electrically conductive to the point that long-range electric and magnetic fields dominate the behaviour of the matter. The plasma state can be contrasted with the other states: solid, liquid, and gas
Explanation:
