Answer:
1.41 moles H2O2(with sig figs)
Explanation:
okay so what is the molar mass of H2O2= (1.008 g/mol)2+(16.00g/mol)2= (2.016+ 32.00) g/ mol
= 34. 02 g/mol
48.0g H2O2* 1 mol H2O2/ 34.02 g H2O2= 1.41 mol H2O2
I would use a conversation calculator
I'm pretty sure that significant figures is just the amount of numbers there is. So, in this case I think the answer would be D. 5
56km/s is 201600m/hr to its equivalent.
1. E. None of the Above
2. D. x + y