This question is based in mole ratios. for every mole of cl2, 2 moles of NaCl will be produced. so half of the moles of NaCl gives the moles of Cl2 required. therefore divide 0.35 by 2
        
             
        
        
        
Answer:
V = 81.14 L
Explanation:
Given data:
Volume of gas = ?
Number of moles = 3.30 mol
Temperature of gas = 25°C
Pressure of gas = 0.995 atm
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K 
T = temperature in kelvin
Now we will convert the temperature.
25+273 = 298 K
now we will put the values in formula:
V = 3.30 mol 0.0821 atm.L/ mol.K   298 K / 0.995 atm
V = 80.74 L. atm / 0.995 atm
V = 81.14 L
 
        
             
        
        
        
Answer:
The reactive nucleophile is Ketone. 
Explanation:
In organic chemistry, The process of acid - catalyzed aldol condensation starts from when ketone (or any aldehyde) is converted to an -enol, after which it attacks another ketone/aldehyde that has already been activated by parbonyl oxygen protonation.
The process of this is that first of all the ketone undergoes tautomerization to form -enol. Thereafter, the other carbonyl will undergo protonation which makes the carbon activated towards attack. Now, the nucleophilic enol will be added to the carbonyl in a [1,2]-addition reaction and we will now use deprotonation to obtain the neutral Aldol product. 
Now, since only the ketone can produce an -enol, thus it is the nucleophile as aldehydes are better electrophiles
 
        
             
        
        
        
Number 3 i think is <span>d.heat moves from an object of higher temperature to an object of lower temperature</span>
        
             
        
        
        
Answer:
A part.
Explanation:
Because the reactants must be the exact same as the the products.