Answer:
thx
Explanation:
have a blessed day can i have brainlyest?
 
        
             
        
        
        
Molarity is defined as the number of moles of solute in 1 L of solution 
molar mass of Ni(NO₃)₂ - 182.7 g/mol
number of moles of Ni(NO₃)₂ - 5.80 g/ 182.7 g/mol = 0.0317 mol
number of moles in 500 mL - 0.0317 mol
therefore number of moles in 1000 mL - 0.0317 mol / 500 mL x 1000 mL/L 
molarity of the solution is - 0.0634 M
        
             
        
        
        
Answer:1 chemical reactions, 2 properties,3 substances, 4light, 5 color, 6 precipitate, 7 gas, 8 temperature 
Explanation: I think this is it I did this a week ago and that’s what I remember 
 
        
                    
             
        
        
        
Answer:
6+9=15 
mass number =15
mass number = no. protons + no. of neutrons