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.
(c) A catalyst either ___ or ___ the rate of a chemical change but itself remains ___ at the end of the reaction.
Complete the following statements:
(a) The chemical change involving iron and hydrochloric acid illustrates a
(b) In the type of reaction called
(c) A catalyst either
Explanation:
(a) In some chemical reactions, an element or radical in a compound is displaced by another element or radical to form new substances or products. This is called displacement reaction.
Therefore, the chemical change involving iron and hydrochloric acid illustrates a displacement reaction.
(b) Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions.
Therefore, in the type of reaction called double decomposition two compounds exchange their positive and negative radicals.
(c) Catalysts tend to react with reactants to form intermediates and at the same time facilitate the production of the final reaction product. After the whole process, a catalyst can regenerate.
Therefore, a catalyst either accelerate or decelerate the rate of a chemical change but itself remains unaffected at the end of the reaction
Explanation:
(a) In some chemical reactions, an element or radical in a compound is displaced by another element or radical to form new substances or products. This is called displacement reaction.
Therefore, the chemical change involving iron and hydrochloric acid illustrates a displacement reaction.
(b) Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions.
Therefore, in the type of reaction called double decomposition two compounds exchange their positive and negative radicals.
(c) Catalysts tend to react with reactants to form intermediates and at the same time facilitate the production of the final reaction product. After the whole process, a catalyst can regenerate.
Therefore, a catalyst either accelerate or decelerate the rate of a chemical change but itself remains unaffected at the end of the reaction
