Answer:
I think the answer is h
Explanation:
when you let the balloon go, all the air the is inside comes out causing it to move forard
 
        
             
        
        
        
Answer:

Explanation:
Hello,
In this case, the unit of concentration is molality which is defined by:

Whereas the mass of the solvent is measured in kilograms. In such a way, with the given data, we first compute the kilograms of water:

Then, we solve for the moles of the solute:

Finally since the molar mass of ethanol is 46 g/mol, we compute the grams for the given solution:

Best regards.
 
        
             
        
        
        
Answer:
hi there !!
B) Water evaporates into steam.
this is correct because only physical state changes, steam can be cooled down to get water again. 
 
        
                    
             
        
        
        
Answer: 899 g
Explanation:
Since the mass of a mole of diatomic chlorine is about 70.9 g/mol, this means that 875 grams is about 875/70.9 = 12.3 mol.
Hence, we know that chlorine is the limiting reactant, and that about 12.3 moles of chlorine will be consumed.
This means that 12.3(2)=24.6 grams of HCl will be produced, which will have a mass of about (24.6)(36.46)=899 g