Mol sulfuric acid = 19 g * (1 mol) / (98.1 g) = 0.19367 mol
mol H2O = 0.19367 mol H2SO4 * (2 H2O) / (1 H2SO4)
                = 0.387359 mol H2O
grams H2O = 0.387359 mol H2O * (18 g)/(1 mol)
                     = 6.97 g
The answer is 7.0 grams of water
        
             
        
        
        
Molecular are only between non-metals. Ionic has a higher melting point
        
                    
             
        
        
        
What I think is the charge of nucleus is the proton+neutron
        
                    
             
        
        
        
Answer:
The formula for volume of a rectangle is length multiply by width multiply thus, 0.25 m multiply 6.1 m multiply by 4.9 m = 7.5m^3.
Explanation:
the least number of significant figures is 2 thus the final answer will have the same number of significant figures. 7.5m^3
 
        
             
        
        
        
Answer:
number of hydrogen atom in 1.8 mole of NH2OH = 
Explanation:
percentage of hydrogen in NH2OH = mass of hydrogen / mass of whole molecule
                                                              = \times 100
\times 100
                                                              = 9.09 percentage
therefore number of moles in 1.8 moles of hydroxy amine = 
                                                                 = .16 moles of hydrogen
number of hydrogen atom = (number of moles )×(avagadro number)
                                               =  atoms of hydrogen
 atoms of hydrogen