Answer:
Explanation:
Sodium mass number 23, 11 electrons
Magnesium: neutrons = 12
aluminum : atomic number  = 13
phosporus : protons = 15
 
        
                    
             
        
        
        
Hey there!:
Volume = 175.4 mL
density = 0.8786 g/mL  
mass = ?
Therefore:
D = m / V
0.8786 = m / 175.4
m = 0.8786 * 175.4
m = 154.10644 g
hope this helps!
        
             
        
        
        
Answer:
I would say that a sauce is a mixture, only because everything that makes up a sauce is all mixed together and turned into one thing, it isn't all separate.
 
        
             
        
        
        
Answer:
2.64 × 10⁶ g
Explanation:
We can find the mass of air using the ideal gas equation.

where,
P is the pressure (P = 1.00 atm)
V is the volume (V = 2.95 × 10⁶ L)
n is the number of moles
R is the ideal gas constant (0.08206atm.L/mol.K)
T is the absolute temperature (121°C + 273 = 394 K)
m is the mass
M is the molar mass (28.09 g/mol)
