Solve this -Fill in the blanks -a- A reaction in which two or more nbsp-substances combine to form a single nbsp-substance is called a - reaction- nbsp-b- A - is a substance which nbsp-changes the rate of a chemical reaction nbsp-without undergoing a chemical change- nbsp-c- The formation of gas bubbles in a nbsp-liquid during a reaction is called -d- The reaction between an acid and a base nbsp-is called -e- Soluble bases are called -f- The chemical change involving iron and nbsp-hydrochloric acid illustrates a -reaction- nbsp-g- In the type of reaction called -two compounds exchange their positive nbsp-and negative radicals respectively- nbsp-

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Combination Reaction

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Question

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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.

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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.

(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.

Complete the following statements:

(a) The chemical change involving iron and hydrochloric acid illustrates a ___ reaction.

(b) In the type of reaction called ___ two compounds exchange their positive and negative redicals.

Fill in the blanks :

(a) The process of a liquid changing into a solid is called_______________

(b) A change which alters the composition of a substance is known as a _______________ change

(d) The reaction in which energy is evolved is called_______________

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