Question

what is chemical change??.. ​

Answer 1

Answer:

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➣Chemical changes are also known as chemical reactions.

➣The “ingredients” of a reaction are called the reactants, and the end results are called the products.

➣ The change from reactants to products is signified by an arrow:

➥Reactants → Products

➣The formation of gas bubbles is often the result of a chemical change (except in the case of boiling, which is a physical change).

➣A chemical change might also result in the formation of a precipitate, such as the appearance of a cloudy material when dissolved substances are mixed.

Answer 2

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

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