Question

Cân bằng phương trình:

1. K + H₂O ---> KOH + H₂

2. Ca + H₂O ---> Ca(OH)₂ + H₂

3. Ba + H₂O ---> Ba(OH)₂ + H₂

4. Li + H₂O ---> LiOH + H₂

Answer 1

1. 2K + 2H2O ---> 2KOH + H2

2. Ca + 2H2O ---> Ca(OH)2 + H2

3. Ba + 2H2O ---> Ba(OH)2 + H2

4. 2Li + 2H2O --->2 LiOH + H2

Answer 2

\(1:2K+2H_2O\rightarrow2KOH+H_2\)

\(2:Ca+2H_2O\rightarrow Ca\left(OH\right)_2+H_2\)

\(3:Ba+2H_2O\rightarrow Ba\left(OH\right)_2+H_2\)

\(4:2Li+2H_2O\rightarrow2LiOH+H_2\)

Answer 3

1. 2K + 2H2O -> 2KOH + H2

2. Ca + 2H2O -> Ca(OH)2 + H2

3. Ba + 2H2O -> Ba(OH)2 + H2

4. 2Li + 2H2O -> 2LiOH + H2