I can't explain the like dissolves like part but the water and oil I can
when oil is poured into water the oil will stay at the top of the water meaning that water is more dense than oil
Answer:
endothermic means energy is taken in and temperature increases.
Answer:
237.8L of water would need to be added.
Explanation:
The first thing to do is to identify that the equation to be used is M1V1=M2V2. (This equation works because it turns everything into moles which can then be compared).
Then figure out what information you have and what is being found. In this case:
M1 = 54.7 M
V1 = 1092 mL = 1.092 L
M2 = 0.25 M
V2 = unknown
Then solve the equation for whatever you are trying to find.
M1V1=M2V2
V2=M1V1/M2
Now you need to plug everything in.
V2=(54.7M*1.091L)/0.25M
V2=238.93L
That means that the solution needs a volume of 238.7L to gain a molarity of 0.25M but the starting solution already had a volume of 1.092 L meaning that to find the amount of solvent that needs to be added you just subtract the starting volume by the volume that the solution needs to be.
238.93L - 1.091L = 237.8L
Therefore the answer is that 237.8L needs to be added to a 1.092L 54.7M NaCl solution to make the concentration 0.25M.
I hope this helps. Let me know if anything is unclear.
Please Give me Brainliest
(1) A. (weathered rock and decomposed organic remains)
(2) B. (Use more land to plant crops)
(3) D. (top soil; organic matter)
(4) C. (They decompose the remains of plants and animals and add nutrients back to the soil)
(5) C. (Physical weathering)
(6) D. (The plates that formed these mountains were once under an ocean)
(7) B. (The water from her gutter pipe was washing away the soil in her flowerbed)
(8) A. (erosion)
(9) B. (Area A was completely underwater in the past)
(10) B. (Soil #2)
(11) B. (loam)
(12) D. (sediment)
Wow that took me more than an hour well Thanks And I hope I get brainliest because I worked soo hard
Hope this helps
-Sprinkles
