Explanation:
1. Living things consist of water and need it to survive.
2. Deserts because the water is evaporated.
3. Use rain barrels, and other water conservation methods.
4. The heat required to convert a solid into a liquid or vapor, or a liquid into a vapor, without a change in temperature.
5. The action of purifying a liquid by a process of heating and cooling.
6. Law stating that the total energy of an isolated system remains constant, and is conserved over time; energy cannot be created or destroyed, but can be transformed or transferred from one form to another.
Answer: TRUE.
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Osmosis is the net movement of water molecules through a semi-permeable memberane from a region of higher water potential to a region of lower water potential.
so in the first case, since 10% of sucrose solution has a lower water potential than the pure water, so water molecules will flow into the sac, causing the sac to increase in volume. note that sucrose molecules can't diffuse out since there's a semi-permeable membrane.
in the question, I'm not 100% sure what the "sac solution" is meant by, but I guess it's the solution inside the sac
so here if the sac sucrose is 20%, the concentration of water is larger in difference than the first time, so osmosis rate will increase.
but if the "sac solution" is meant by replacing the water of the first case, then the sac inside would have a higher water potential, as the sucrose concentration is more diluted. then the water molecules will flow from the sac back to the beaker or whatever container it is.
I’ll let u know as soon as i get the answer!! i did some work like this i think i can figure it out
