D) Transportation is the correct answer
The molar mass of the hydrate is 278.06
The molar mass of the anhydrous salt is 151.92
The molar mass of water in the hydrate is 126.14
The volume of water he dissolved the solute is 250 cubic centimeter.
<u>Explanation</u>:
Concentration = mass of solute in g / volume in dm^3
The concentration of a solution is defined as the ratio of mass of solute in grams to the volume of water in dm^3.
If concentration of a solution = 8 g/dm^3.
mass of solute =2 g.
Volume of a water = 2 / 8 = 0.25 dm^3. (or) 250 cubic centimeter.
Answer : The lowest numbered energy level where a 'd' sublevel is found is 3.
Explanation : According to the theory of order of electron filling;
The 4s orbitals is observed to have a lower energy than the 3d, and so the 4s orbitals are filled first.
It is known that 4s electrons are lost first during ionisation activity. Therefore, the electrons lost first will come from the highest energy level, furthest from the influence of the nucleus.
So, the lowest energy level where 'd' sub shell will be found is 3d.
Oxygen gas
Water
Explanation:
In the process of cellular respiration, carbohydrate combines with Oxygen gas to produce carbon dioxide, water and energy.
Cellular respiration is the reverse process of photosynthesis.
During cellular respiration, carbohydrate is used to produce energy when they combines with oxygen gas. The produces are waste carbon dioxide and water vapor and energy.
The energy produced is the desired end product that is needed by all life.
Carbohydrate + Oxygen gas → Carbon dioxide + Water + energy
learn more:
Cellular respiration brainly.com/question/3447259
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