Advertisements
Advertisements
Question
Balance the following equation:
\[\ce{K + H2O->KOH + H2}\]
Advertisements
Solution
\[\ce{K + H2O->KOH + H2}\]
Multiply H2O by 2 on left side and KOH by 2 on right to make H and O equal.
Atoms of Na, O, and H are balanced on both sides.
\[\ce{K + 2H2O->2KOH + H2}\]
To make K equal make 2K on left.
\[\ce{2K + 2H2O->2KOH + H2}\]
There are 2K atoms, 2(O) atoms and 4H atoms on both side.
APPEARS IN
RELATED QUESTIONS
Balance the following equation:
N2 + H2 → NH3
State four conditions necessary for a chemical reaction to take place.
Balance the following equation:
`N_2+O_2 → NO`
Balance the following equation:
\[\ce{Pb3O4 + HCl->PbCl2 + H2O + Cl2}\]
Balance the following equation:
\[\ce{CuO + NH3->Cu + H2O + N2}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{FeS + 2HCl + 2FeCl2 + H2S}\]
A teacher gave two test tubes to the students, one containing water and the other containing sodium hydroxide. She asked them to identify the test tube containing sodium hydroxide solution. Which one of the following can be used for identification?
Which of the following is Not True with respect to the neutralisation reaction?
Before burning in air, the magnesium ribbon is cleaned by rubbing with sand paper to:
Which of the following correctly represents a balanced chemical equation?
