Advertisements
Advertisements
Question
Balance the following simple equation:
ZnS + O2 → ZnO + SO2
Advertisements
Solution
2ZnS + 3O2 → 2ZnO + 2SO2
APPEARS IN
RELATED QUESTIONS
Translate the following statement into a chemical equation and then balance the equation:
Barium chloride reacts with zinc sulphate to give zinc chloride and barium sulphate.
When the solution of substance X is added to a solution of potassium iodide, then a yellow solid separates out from the solution.
- What do you think substance X is likely to be?
- Name the substance which the yellow solid consists of.
- Which characteristic of chemical reactions is illustrated by this example?
- Write a balanced chemical equation for the reaction which takes place. Mention the physical states of all the reactants and products involved in the chemical equation.
Balance the following equation. Also name the product formed.
CO2 + C → CO
Write the balanced chemical equation of the following reaction.
ammonia + oxygen → nitric oxide + water
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
2H2 + O2 → 2H2O
Representation of the results of a chemical change – is a chemical equation.
For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓
Answer the following:
What is the indications of the arrow between the reactants and the products and of the arrow pointing downwards at the end.
Balance the following simple equation:
KHCO3 → K2CO3 + H2O + CO2
Balance the following simple equation:
KBr + Cl2 → KCl + Br2
Which of the following is not a physical change?
Complete the following blank in the equation as indicated.
\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]
Grams: 42 g + ______ `→` ______ + ______
