English Medium कक्षा १० - CBSE Question Bank Solutions for Science

Balance the following equation:

Na + O₂  Na₂O

Balance the given equation:

H₂O₂  H₂O + O₂

Balance the given equation:

Mg(OH)₂  + HCI    MgCI + H₂O

Balance the given equation:

Fe + O₂  Fe₂O₃

Balance the given equation:

AI(OH)₃   AI₂O₃ +H₂O

Balance the given equation:

NH₃ + CuO  Cu +N₂ +H₂O

Balance the given equation:

AI₂(SO₄)₃ +NaOH  AI(OH)₃ + Na₂SO₄ 

Balance the given equation:

HNO₃ + Ca(OH)₂  Ca(NO₃)₂ + H₂O

Balance the gievn equation:

NaOH + H₂SO₄  Na₂SO₄ + H₂O

Balance the given equation:

BaCI₂ + H₂SO₄  BaSO₄ + HCI

Fill in the following blank with suitable word:

 Chemical equations are balanced to satisfy the law of ............

Fill in the following blank with suitable word:

A solution made in water is known as an ........... solution and indicated by the symbol ...........

What is a chemical equation? Explain with the help of an example.

Giving examples, state the difference between balanced and unbalanced chemical equations.

Balance the given chemical equation:

NH₃ → N₂ + H₂

Balance the given chemical equation:

C + CO₂ → CO

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 elements.

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 compounds.

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 reactants.

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.