Answer:It will go on until the concentrations will meet. Blood cells are composed mainly of water, it will make up the proportion of about 90% of water for whole body. ... Because of the difference in osmotic potential caused by the salt water solution, water will diffuse out of the red blood cells causing them to shrink in size.
Explanation:
Recrystallization is a separating technique in chemistry in which mixtures are dissolve in appropriate solvent, this leads to the separating out of one of the components of the mixture leaving behind the other component. The technique is used to purify solid substances.
In real life, the technique finds application in re-crystallization of metals.
Answer:
Option D. 230 J
Explanation:
We'll begin by calculating the temperature change of the iron. This can be obtained as follow:
Initial temperature (T₁) = 50 °C
Final temperature (T₂) = 75 °C
Change in temperature (ΔT) =?
ΔT = T₂ – T₁
ΔT = 75 – 50
ΔT = 25 °C
Thus, the temperature change of the iron is 25 °C.
Finally, we shall determine the amount of heat energy used. This can be obtained as follow:
Mass (M) = 20 g
Change in temperature (ΔT) = 25 °C
Specific heat capacity (C) = 0.46 J/gºC
Heat (Q) =?
Q = MCΔT
Q = 20 × 0.46 × 25
Q = 230 J
Thus, the amount of heat used was 230 J
Answer:
Caribe, Bermudas, Centroamérica incluyendo el este de México, las costas oriental y del Golfo de los Estados Unidos, y el este de Canadá.
Explanation: