I uhhh would answer but this is actually confusing
Answer:
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Answer: Groundwater and surface water are connected. When groundwater is overused, the lakes, streams, and rivers connected to groundwater can also have their supply diminished. Land subsidence occurs when there is a loss of support below ground. This is most often caused by human activities, mainly from the overuse of groundwater, when the soil collapses, compacts, and drops.
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Answer:
The temperature will decrease to 50 K
Explanation:
Step 1: Data given
Temperature = 127 °C = 400 K
Pressure = 2.00 atm
The pressure decreases to 0.25 atm
Volume and number of moles do not change
Step 2: Calculate the new pressure
p1/T1=p2/T2
⇒with p1 = The initial pressure = 2.00 atm
⇒with T1 = The initial temperature = 127 °C = 400 K
⇒with p2 = the new pressure = 0.25 atm
⇒with T2 = the new temperature = TO BE DETERMINED
2.00 atm / 400 K = 0.25 atm / T2
0.005 = 0.25 / T2
T2 = 0.25/0.005
T2 = 50 K
The temperature will decrease to 50 K
Answer:
The concentration of HI in the final solution is 1.3 M.
Explanation:
Dilution is the reduction in concentration of a chemical in a solution. It is achieved by adding more solvent to the same amount of solute.
In other words, in a dilution, the amount of solute does not change, but the volume of the solvent does: as more solvent is added, the concentration of the solute decreases, since the volume (and weight) of the solution increases.
When dealing with dilution you will use the following equation:
C1*V1= C2*V2
- C1 = initial concentration
- V1 = initial volume
- C2 = final concentration
- V2 = final volume
In this case:
- C1 = 3 M
- V1 = 65 mL= 0.065 L (being 1000 mL= 1 L)
- C2 = ?
- V2 = 0.15 L
Replacing:
3 M* 0.065 L= C2*0.15 L
Solving:
C2= 1.3 M
<u><em>The concentration of HI in the final solution is 1.3 M.</em></u>