Question

10g of hydrogen and 64g​

Answer 1

Answer:2H  

10 g of hydrogen (molar mass 2 g/mol) =  

2 g/mol  

10 g  ​  

= 5 mol  

64 of oxygen  (molar mass 32 g/mol) =  

32 g/mol  

64 g    

= 2 mol  

As per the balanced chemical equation, 1 mole of oxygen will react with 2 moles of hydrogen to form 2 moles of water.

2 moles of oxygen will react with 2×2=4 moles of hydrogen to form 4 moles of water.

Here, oxygen is the limiting reagent and hydrogen is the excess reagent.

Hence, option B is correct

Explanation: its the wrong subject but....okay.