Question

Mason was asked to balance the equation that models the reaction between lithium (Li) and water (H2O), which yields lithium hydroxide (LiOH) and hydrogen gas (H2). Then he was asked to record his process. Mason performs the correct steps to balance the equation but writes down these steps in the wrong order. A. Added a coefficient of 2 in front of the lithium (Li) reactant in order to correct the imbalance. B. Observed that the equation was balanced. C. Noticed the imbalance between the one lithium (Li) atom on the reactant side and the two lithium atoms on the product side. D. Noticed that the two hydrogen (H) atoms on the reactant side and the three hydrogen atoms on the product side were not balanced. E. Added a coefficient of 2 in front of the water (H2O) reactant and the lithium hydroxide (LiOH) product in order to correct the imbalance. Which option correctly orders the steps Mason must have followed to balance the equation Li + H2O → LiOH + H2?

D, E, C, A, B
C, A, D, E, B
C, E, D, A, B
D, A, C, E, B

Answer 1

D, E, C, A, B

Step-by-step explanation:

I just took a test a test and got it right

Answer 2

Answer: Option (A) is the correct answer.

Step-by-step explanation:

The given equation is as follows.

`Li + H_(2)O \rightarrow LiOH + H_(2)`

Correct orders of the steps Mason must have followed to balance the equation are as follows.

• Then Mason noticed that the two hydrogen (H) atoms on the reactant side and the three hydrogen atoms on the product side were not balanced.

• So, he added a coefficient of 2 in front of the water (H2O) reactant and the lithium hydroxide (LiOH) product in order to correct the imbalance as follows.

`Li + 2H_(2)O \rightarrow 2LiOH + H_(2)`

• Noticed the imbalance between the one lithium (Li) atom on the reactant side and the two lithium atoms on the product side.

• After that, he added a coefficient of 2 in front of the lithium (Li) reactant in order to correct the imbalance as follows.

`2Li + H_(2)O \rightarrow 2LiOH + H_(2)`

• Now, Mason observed that the equation was balanced.

Thus, we can conclude that D, E, C, A, B correctly orders the steps Mason must have followed to balance the equation
`Li + H_(2)O \rightarrow LiOH + H_(2)`.