<span>B.) Suspension
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Answer : The fuel value and the fuel density of pentane is, 49.09 kJ/g and respectively.
Explanation :
Fuel value : It is defined as the amount of energy released from the combustion of hydrocarbon fuels. The fuel value always in positive and in kilojoule per gram (kJ/g).
As we are given that:
Fuel value =
Molar mass of pentane = 72 g/mol
Fuel value =
Fuel value = 49.09 kJ/g
Now we have to calculate the fuel density of pentane.
Fuel density = Fuel value × Density
Fuel density = (49.09 kJ/g) × (0.626g/mL)
Fuel density = 30.73 kJ/mL =
Thus, the fuel density of pentane is
Transportation is the movement of food substances (sugars) from the stems to growing tissues and storage tissues.
:)
Answer:
Typically the pH in the stomach is around 1.0 to 2.0, which is extremely acidic. This level of acidity causes salivary amylase's protein structure to denature and change shape. Consequently, salivary amylase does not function once it enters the stomach.
Explanation:
Chlorine gas has the the chemical formula Cl2
Solid phosphorus has the chemical formula P4
Phosphorous pentachloride has the chemical formula PCl5
Now the UNBALANCED reaction will be as follows:
P4 + Cl2 ...........> PCl5
We need to balance the equation:
1- We have 4 solid phosphorous atoms as reactants, therefore, the product should have 4 phosphorus atoms as well.
P4 + Cl2 ..............> 4PCl5
2- Now, we have 20 chlorine atoms in the products while only 2 atoms of chlorine as reactants. Therefore, we need to multiply Cl2 by 10 to balance the equation as follows:
P4 + 10Cl2 ...........> 4PCl5
The final balanced equation is as follows:
P4 + 10Cl2 ...........> 4PCl5