Answer:
0.779 moles.
Explanation:
Mass of chlorine/number of moles = molar mass of chlorine.
Molar mass of chlorine = (35.5*2)
= 71 g/mol.
Mass = 55.3 g of chlorine.
Number of moles = 55.3/71
= 0.779 moles.
Answer: Option (A) is the correct answer.
Explanation:
When energy is transferred from the air to the water then energy is absorbed by the water molecules.
This energy travels through one molecule of water to another molecule of water by the process of convection.
Thus, we can conclude that when energy is transferred from the air to the water, then it travels through the water.
Well there's a couple reasons why. First, the land itself can become “tired" and less fertile<span>. This is because the same type of </span>crop<span> planted repeatedly in the same area keeps draining the land of the same nutrients needed for that plant's growth. Pest can also plant their nest near the crop if the farmer continues to plant the same crop in the same place.
Which is the reason why things such as "crop rotation" exist to keep things fresh, and prevent what I described above from happening.</span>
Answer:
0.93956kg
Explanation:
Equation for the reaction is given as;
P4 + 5O2 --> P4O10
From the equation, 1 mole of P4 produces 1 mole of P4O10.
Mass = Number of moles * molar mass
Mass of P4 = 1 mol * 123.88 g/mol = 123.88 grams
Mass of P410 = 1 mol * 283.886 g/mol = 283.886 g
This means 123.88 grams of P4 produced 283.886 g of P4O10.
How many kilograms of P4O10 would be produced from 410. g of pure P4 ?
123.88 = 283.886
410 = x
x = (410 * 283.886 ) / 123.88
x = 939.56g
Upon converting to Kilogram by dividing by 1000
x = 0.93956kg
1.Use of contraceptives help the members of the society to control population.
2.By advancing the way of development in society.
3.Brings a kind of practical thoughts in the pendulianers...
