Advertisements
Advertisements
प्रश्न
Balance the following simple equation:
K + H2O → KOH + H2
Advertisements
उत्तर
2K + 2H2O → 2KOH + H2
APPEARS IN
संबंधित प्रश्न
Balance the following chemical equation.
\[\ce{BaCl2 + H2SO4 -> BaSO4 + HCl}\]
What are the various ways in which a chemical equation can be made more informative? Give examples to illustrate your answer.
Write word equation for the following skeletal equation:
\[\ce{AgBr -> Ag + Br2}\]
To determine the percentage of water absorbed by raisins, raisins are soaked in water for:
Balance the following equation:
PbS + O2 → PbO + SO2
Write the balanced chemical equation of the following reaction. potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of chlorine gas formed.
A student mixes sodium sulphate powder in barium chloride powder. What change would the student observe on mixing the two powders? Justify your answer and explain how he can obtain the desired change.
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
State why the compound MnO2 is written above the arrow.
Why should a magnesium ribbon be cleaned before burning in air?
