Advertisements
Advertisements
Question
Chemical equations are balanced to satisfy the law of ______.
Advertisements
Solution
Chemical equations are balanced to satisfy the law of conservation of mass.
Explanation:
Chemical equations are balanced to ensure that the total mass of the reactants equals the total mass of the products. This satisfies the law of conservation of mass, which states that atoms cannot be created or destroyed during a chemical reaction. Therefore, the exact same number of atoms for each element must exist on both sides of the equation.
APPEARS IN
RELATED QUESTIONS
What is wrong with the following chemical equation?
\[\ce{Mg + O -> MgO}\]
Correct and balance it.
Balance the following equation:
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
What is a chemical equation? Explain with the help of an example.
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are products.
Balance the following equation and add state symbols:
Zn + HCI → ZnCI2 + H2
What is meant by chemical reaction? Explain with the help of an example.
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
Balance the following chemical equation :
Na20 + H20 → NaOH
Name the fundamental law that is involved in every equation.
Write the balanced chemical equation of the following reaction.
barium chloride + sulphuric acid → barium sulphate + hydrochloric acid
Write the balanced chemical equation of the following reaction.
aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen
Write the name and molecular formula of a carbon compound having its name suffixed with "-ol" and having two carbon atoms in its molecule. With the help of a chemical equation indicate what happens when this compound is heated with excess conc. H2SO4.
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.
\[\ce{C +2S -> CS2}\]
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Dilute hydrochloric acid to silver nitrate.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Electrical energy
Give word equation for the following chemical reaction and give the names of the product formed.
\[\ce{CuO + H2SO4 -> CuSO4 + H2O}\]
Give word equation for the following chemical reaction and give the names of the product formed.
Zn + S → ZnS
Give a balanced equation by partial equation method, [steps are given below].
The reaction of excess ammonia with chlorine – Ammonia as a reducing agent
- Ammonia first reacts with chlorine to give hydrogen chloride and nitrogen.
- Hydrogen chloride then further reacts with excess ammonia to give ammonium chloride.
The chemical equation Na2SO4(aq) + BaCl2(aq) → BaSO4(s)↓ + 2NaCl(aq) represents which of the following types of reaction?
Reema took 5ml of Lead Nitrate solution in a beaker and added approximately 4ml of Potassium Iodide solution to it. What would she observe?
