Chemical reactions change what and produce what?

chemical reactions change reactant and produce new substance called products.

Explanation:

chemical reaction is a change which will produce a new substance. ( while physical reaction does not produce a new substance.

Chemical reactions changes substances and produces a new different substance.

Explanation:

By the process of chemical reactions, many substances are converted or changed into different compounds as a product. The reactants that cause the change are changed into products of the reaction. They are usually chemical compounds. The reactions organize the atoms of a compound and create other substances.

Examples of chemical reactions are- burning of fuel, pottery, cheese and wine making etc. They are different from physical changes like- ice melting and becoming water.

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lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.