Answer:
they are equal
Explanation:
the Law of Conservation of Mass states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change
 
        
             
        
        
        
Answer:
1.33 L.
Explanation:
- We can use the general law of ideal gas: PV = nRT.
 
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R  is the general gas constant,
T is the temperature of the gas in K.
- If n and T are constant, and have different values of P and V:
 
<em>(P₁V₁) = (P₂V₂)</em>
<em></em>
Knowing that:
V₁  =  4.0 L, P₁ = 2.0 atm,
V₂  =  ??? L, P₂ = 6.0 atm.
- Applying in the above equation 
 
(P ₁V₁) = (P₂V₂) 
<em>∴ V₂ = P ₁V₁/P₂</em> = (2.0 atm)(4.0 L)/(6.0 atm) =<em> 1.33 L.</em>
 
        
             
        
        
        
Answer:
The correct answer is - D C2H4.
Explanation:
Saturated hydrocarbons are hydrocarbons with single covalent C-C bonds. They are known as alkanes. The general formula for these hydrocarbons is  CnH2n+2
Unsaturated hydrocarbons the hydrocarbons with double or triple covalent C-C bonds. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is  CnH2n and CnHn-2
For the given options:
Option D: C2H4, is the simplest alkene with a double bond so it is an unsaturated hydrocarbon.
 
        
             
        
        
        
Boiling point
i hope this helps.