Answer:
The correct answer is option ( D )
Explanation:
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Answer: 313.6
Explanation:
To calculate the moles :
According to stoichiometry :
1 mole of require 3 moles of
Thus 2.8 moles of will require= of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
As 1 mole of give = 2 moles of
Thus 2.8 moles of give = of
Mass of
Theoretical yield of liquid iron is 313.6 g
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46. F the mouth.
Because the mouth works as the food smasher and with the addition of saliva the food will be softer to digest.
47. D The Weight
Because weight is mass times the acceleration of gravity and acceleration of gravity is different on moon 1.620 m/s^2.
48.G Two elements
Because compounds are made of two or more than two elements.
Answer:
Explanation: For example, in a warm climate, where chemical weathering dominates, soils tend to ... including the mechanical breakup of rocks, and the chemical weathering of minerals. ... Too much water (e.g., in rainforests) can lead to the leaching of important ... it implies that the soil itself has been transported, which is not the case.