Answer:
2:2
Explanation:
The question is on mole ration in a chemical equation.
Steps to identify mole ratio in an equation
- Write a balance chemical equation-atoms of elements in the reactant side should equal that of the product side
2H₂ + O₂⇒ 2H₂O------------------This equation is balanced. how?
Number of hydrogen atoms in reacting side= 2×2=4
Number of hydrogen atoms in the products side= 2×2=4
Number of oxygen atoms in the reacting side=2
Number of oxygen atoms in the product side =2
Writing the mole ratio in the equation
2H₂ + O₂⇒ 2H₂O
2 1 2
Mole ratio of hydrogen to water
2H₂ + O₂⇒ 2H₂O
2 2
= 2:2
