Fill in the blanks :
(a) A reaction in which two or more substances combine to form a single substance is called a ___ reaction.
(b) A ___ is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
(c) The formation of gas bubbles in a liquid during a reaction is called___
(d) The reaction between an acid and a base is called ___
(e) Soluble bases are called ___
(f) The chemical change involving iron and hydrochloric acid illustrates a ___ reaction.
(g) In the type of reaction called ___ two compounds exchange their positive and negative radicals respectively.
(h) A catalyst either ___ or ___ the rate of a chemical change but itself remains ___ at the end of the reaction.
(i) The chemical reaction between hydogen and chlorine is a ___ reaction
(j) When a piece of copper is added to silver nitrate solutuions, it turns ___ in colour.
Fill in the blanks :
(a) A reaction in which two or more substances combine to form a single substance is called a
(b) A
(c) The formation of gas bubbles in a liquid during a reaction is called
(d) The reaction between an acid and a base is called
(e) Soluble bases are called
(f) The chemical change involving iron and hydrochloric acid illustrates a
(g) In the type of reaction called
(h) A catalyst either
(i) The chemical reaction between hydogen and chlorine is a
(j) When a piece of copper is added to silver nitrate solutuions, it turns
(a) A reaction in which two or more substances combine to form a single substance is called a combination reaction.
(b) A catalyst is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
(c) The formation of gas bubbles in a liquid during a reaction is called effervescence.
(d) The reaction between an acid and a base is called a neutralization reaction.
(e) Soluble bases are called alkalis.
(f) The chemical change involving iron and hydrochloric acid illustrates a displacement reaction.
(g) In the type of reaction called double decomposition reaction, ions two compounds exchange their positive and negative radicals ions respectively.
(h) A catalyst either increases or decreases the rate of a chemical change but itself remains unchanged at the end of the reaction.
(i) The chemical reaction between hydrogen and chlorine is a combinaton reaction
(j) When a piece of copper is added to silver nitrate solution, it turns blue in colour.
(a) A reaction in which two or more substances combine to form a single substance is called a combination reaction.
(b) A catalyst is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
(c) The formation of gas bubbles in a liquid during a reaction is called effervescence.
(d) The reaction between an acid and a base is called a neutralization reaction.
(e) Soluble bases are called alkalis.
(f) The chemical change involving iron and hydrochloric acid illustrates a displacement reaction.
(g) In the type of reaction called double decomposition reaction, ions two compounds exchange their positive and negative radicals ions respectively.
(h) A catalyst either increases or decreases the rate of a chemical change but itself remains unchanged at the end of the reaction.
(i) The chemical reaction between hydrogen and chlorine is a combinaton reaction
(j) When a piece of copper is added to silver nitrate solution, it turns blue in colour.
