Answer:
092) Icosane
093) Ethene
Explanation:
092) The given compounds are;
Decane C₁₀H₂₂; Viscosity = 0.850 mPa·s (25°C)
Ethene C₂H₄ (gas); Viscocity ≈ 0.01038 m
Icosane C₂₀H₄₂; Solid at room temperature
Methane CH₄; gas at room temperature
The viscosity of the given carbon and hydrogen compounds is observed to increase with their molar masses
Therefore, icosane, which is a solid at room temperature, has the highest viscosity (resistance to deformation) out of the given compounds
093) Polymers are made from monomer alkene units, therefore, ethene, which is the only alkene among the given compounds can be used to produce a polymer
Polyethene is formed by the polymerization of ethene whereby molecules of ethene are joined together to form poly(ethene)
Answer:
A. The balanced equation is given below:
5C + 2SO2 —> CS2 + 4CO
B. 229.5 moles of carbon.
Explanation:
A. Step 1:
The equation for the reaction is given below:
C + SO2 —> CS2 + CO
A. Step 2:
Balancing the equation.
The above equation can be balanced as follow:
There are 2 atoms of S on the right side and 1 atom on the left side. It can be balance by putting 2 in front of SO2 as shown below:
C + 2SO2 —> CS2 + CO
There are 4 atoms of O on the left side and 1 on the right. It can be balance by putting 4 in front of CO as shown below:
C + 2SO2 —> CS2 + 4CO
There are a total of 5 atoms of C on the right side and 1 atom on the left. It can be balance by putting 5 in front of C as shown below:
5C + 2SO2 —> CS2 + 4CO
Now the equation is balanced
B. Determination of the number of moles of carbon needed to produce 45.90 moles of carbon disulfide.
This is illustrated below:
5C + 2SO2 —> CS2 + 4CO
From the balanced equation above,
5 moles of C produced 1 mole of CS2.
Therefore, Xmol of C will produce 45.90 moles of CS2 i.e
Xmol of C = 5 x 45.90
Xmol of C = 229.5 moles
229.5 moles of carbon is needed to produce 45.90 moles of carbon disulfide.
I pretty sure it true I’m not completely sure
They will stay the same through the laws of conservation of mass even when they have changed state so they will have the reactant of Ice will be the same amount as the product of water
Letter C would be the correct answer
