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Two chemicals mixed at room temperature react slowly. Suggest two ways to complete the reaction at a faster rate.
What type of chemical reaction is the reaction between sodium chloride and silver nitrate?
What type of reaction is $\rm 4Na + O_{2} → 2Na_{2}O$?
Which substance is X in the given chemical reaction? $\rm HCl + X → NaCl + H_{2}O$
What type of reaction is the heating of CaCO3?
Hydrogen peroxide is not stored in a transparent vessel. Why?
An acid-base reaction is also known as a neutralization reaction. Why?
The rate of a chemical reaction is different according to the type of the reaction.
Differentiate: Single displacement reaction and Double displacement reaction
Differentiate: Combination reaction and Decomposition reaction
$\rm KClO_{3} → 2 KCl + 3O_{2}$. Balance the chemical reaction and mention its type.
$\rm CH_{4} + O_{2} → CO_{2} + H_{2}O$. Balance the chemical reaction and mention its type.
$\rm Fe + O_{2} → Fe_{2}O_{3}$. Balance the chemical reaction and mention its type.
$\rm Zn + H_{2}SO_{4} → ZnSO_{4} + H_{2}$. Balance the chemical equation and mention its type.
$\rm Al + H_{2}SO_{4} → Al_{2}(SO_{4})_{3} + H_{2}$. Balance the chemical equation and mention its type.
What do you mean by a chemical reaction? Explain with an example.
What is the rate of chemical reaction? Write any four factors which affect the rate of chemical reaction.
What do you mean by a displacement reaction? Write its two examples with their balanced chemical equations.
What do you mean by a decomposition reaction? Write its two examples with their balanced chemical equations.
What is the type of chemical reaction occurring inside the test tube shown in the given figure? Write the balanced chemical equation of that reaction. (Reaction of cupper sulphate with iron)
Four students A, B, C, and D are allowed to carry out decomposition reactions in the laboratory. All of them perform it differently as given below.
- Student A burnt magnesium (Mg) ribbon
- Student B mixed Zn in FeSO4 solution
- Student C heated KClO3 in a hard glass test tube
- Student D mixed Zn and HCl solution
Which student followed the correct procedure? Write the balanced chemical reaction of that process.
Samir burns a magnesium ribbon which is like a small strip or a ribbon. It burns brightly and forms white ash 'A’. Write the name of substance ‘A’. Write a balanced chemical reaction of the process.
Write the type of catalyst used in the given chemical reaction.
$\rm 2KClO_3 \xrightarrow{MnO_2} 2KCl + 3O_2$
What is the type of chemical reaction represented by given chemical equation?
$\rm Zn + 2HCI \rightarrow ZnCl_2 + H_2$
Write the balanced chemical equation for the reaction between aluminium and dilute hydrochloric acid.
What type of chemical reaction occurs when magnesium oxide is mixed with water?
Convert the following incomplete word equation into balanced formula equation.
Magnesium + Oxygen $\rm\rightarrow \dots \dots $
Why is catalyst used in chemical reaction?
Answer the asked questions on the basis of the given chemical equations.
(a) CaCO$_3$ $\xrightarrow{\triangle}$ CaO + CO$_2$
(b) Zn + H$_2$SO$_4$ $\rm \rightarrow $ ZnSO$_4$ + H$_2$
- Identify the endothermic reaction from the above reactions.
- What happens when powder of CaCO$_3$ , is used instead of pieces of CaCO$_3$ , in the chemical reaction?
Magnesium is burnt in nitrogen. Which of the following equation is correct for the reaction?
Write any two differences between decomposition reaction and displacement reaction.
Two chemicals mixed at room temperature react slowly. Suggest two ways to complete the reaction at a faster rate.
What type of chemical reaction is the reaction between sodium chloride and silver nitrate?
What type of reaction is $\rm 4Na + O_{2} → 2Na_{2}O$?
Which substance is X in the given chemical reaction? $\rm HCl + X → NaCl + H_{2}O$
What type of reaction is the heating of CaCO3?
Hydrogen peroxide is not stored in a transparent vessel. Why?
An acid-base reaction is also known as a neutralization reaction. Why?
The rate of a chemical reaction is different according to the type of the reaction.
Differentiate: Single displacement reaction and Double displacement reaction
Differentiate: Combination reaction and Decomposition reaction
$\rm KClO_{3} → 2 KCl + 3O_{2}$. Balance the chemical reaction and mention its type.
$\rm CH_{4} + O_{2} → CO_{2} + H_{2}O$. Balance the chemical reaction and mention its type.
$\rm Fe + O_{2} → Fe_{2}O_{3}$. Balance the chemical reaction and mention its type.
$\rm Zn + H_{2}SO_{4} → ZnSO_{4} + H_{2}$. Balance the chemical equation and mention its type.
$\rm Al + H_{2}SO_{4} → Al_{2}(SO_{4})_{3} + H_{2}$. Balance the chemical equation and mention its type.
What do you mean by a chemical reaction? Explain with an example.
What is the rate of chemical reaction? Write any four factors which affect the rate of chemical reaction.
What do you mean by a displacement reaction? Write its two examples with their balanced chemical equations.
What do you mean by a decomposition reaction? Write its two examples with their balanced chemical equations.
What is the type of chemical reaction occurring inside the test tube shown in the given figure? Write the balanced chemical equation of that reaction. (Reaction of cupper sulphate with iron)
Four students A, B, C, and D are allowed to carry out decomposition reactions in the laboratory. All of them perform it differently as given below.
- Student A burnt magnesium (Mg) ribbon
- Student B mixed Zn in FeSO4 solution
- Student C heated KClO3 in a hard glass test tube
- Student D mixed Zn and HCl solution
Which student followed the correct procedure? Write the balanced chemical reaction of that process.
Samir burns a magnesium ribbon which is like a small strip or a ribbon. It burns brightly and forms white ash 'A’. Write the name of substance ‘A’. Write a balanced chemical reaction of the process.
Write the type of catalyst used in the given chemical reaction.
$\rm 2KClO_3 \xrightarrow{MnO_2} 2KCl + 3O_2$
What is the type of chemical reaction represented by given chemical equation?
$\rm Zn + 2HCI \rightarrow ZnCl_2 + H_2$
Write the balanced chemical equation for the reaction between aluminium and dilute hydrochloric acid.
What type of chemical reaction occurs when magnesium oxide is mixed with water?
Convert the following incomplete word equation into balanced formula equation.
Magnesium + Oxygen $\rm\rightarrow \dots \dots $
Why is catalyst used in chemical reaction?
Answer the asked questions on the basis of the given chemical equations.
(a) CaCO$_3$ $\xrightarrow{\triangle}$ CaO + CO$_2$
(b) Zn + H$_2$SO$_4$ $\rm \rightarrow $ ZnSO$_4$ + H$_2$
- Identify the endothermic reaction from the above reactions.
- What happens when powder of CaCO$_3$ , is used instead of pieces of CaCO$_3$ , in the chemical reaction?
Magnesium is burnt in nitrogen. Which of the following equation is correct for the reaction?
Write any two differences between decomposition reaction and displacement reaction.