Answer:
what kind of chemistry is it going to be?
 
        
                    
             
        
        
        
Answer: if you examine the rock u might see that it has been in lava before or is dark from burns
Explanation: i dont know if im right but pls mark brainliest
 
        
             
        
        
        
Answer:
The molality of isoborneol in camphor is 0.53 mol/kg.
Explanation:
Melting point of pure camphor= T =179°C
Melting point of sample =  = 165°C
 = 165°C
Depression in freezing point = 

Depression in freezing point  is also given by formula:

 = The freezing point depression constant
 = The freezing point depression constant
m = molality of the sample
i = van't Hoff factor
We have:  = 40°C kg/mol
 = 40°C kg/mol
i = 1 (  organic compounds)



The molality of isoborneol in camphor is 0.53 mol/kg.
 
        
             
        
        
        
Answer:
Step 1 should be convert atoms to moles (n). Step 2 should be convert moles (n) to mass (m).
Step 1
Use dimensional analysis to convert the number of atoms to moles.
1 mole atoms = 6.022 × 10²³ atoms
n(Ag) = 2.3 × 10²⁴ Ag atoms × (1 mol Ag/6.022 × 10²³ Ag atoms) = 3.8193 mol Ag
Step 2
Convert the moles of Ag to mass.
mass (m) = moles (n) × molar mass (M)
n(Ag) = 3.8193 mol Ag
M(Ag) = atomic weight on the periodic table in g/mol = 107.868 g Ag/mol Ag
m(Ag) = 3.8193 mol × 107.868 g/mol = 412 g Ag = 410 g Ag rounded to two significant figures
The mass of 2.3 × 10²⁴ Ag atoms is approximately 410 g.
Explanation: