Explanation:
The cleansing action of soaps is predicated on the nature of soaps as we have it.
- A soap has the ability to remove dirt from materials.
- The cleansing action of a soap is related to the structure of its molecule.
- A molecule of soap has dual structure with polar head that is water loving and a long hydrocarbon tail which is hydrophobic.
- The structure enables soap molecules to emulsify an organic dirt present on a fabric in water.
- The soap causes the suspension of tiny oil droplets in the aqueous medium.
Answer is: 1160 J of heat Is required to increase the temperature.
m(Fe) = 100 g.
∆T = 40,2 - 15 = 25,2°C.
C(Fe) = 0,46 J/g•°C.
Q = m(Fe) • C • ∆T.
Q = 100 g • 0,46 J/g•°C • 25,2°C
Q = 1160 J.
C - specific heat.
Answer:
A. There is more dissolved oxygen in colder waters than in warm water.
D. If ocean temperature rise, then the risk to the fish population increases.
Explanation:
Conclusion that can be drawn from the two facts stated above:
*Dissolved oxygen is essential nutrient for fish survival in their aquatic habitat.
*Dissolved oxygen would decrease as the temperature of aquatic habit rises, and vice versa.
*Fishes, therefore, would thrive best in colder waters than warmer waters.
The following are scenarios that can be explained by the facts given and conclusions arrived:
A. There is more dissolved oxygen in colder waters than in warm water (solubility of gases decreases with increase in temperature)
D. If ocean temperature rise, then the risk to the fish population increases (fishes will thrive best in colder waters where dissolved oxygen is readily available).
Answer:
The answer that you are looking for is 2 and 8
Explanation:
I got it right on edge 2020
10 molecules of water are needed.
