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08.12.2020 •
Chemistry
In a chemical change what do you start with and what do you end with?
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Ответ:
A Chemical Change Difference
Explanation: "You start with one molecule and turn it into another. Chemical bonds are made or broken in order to create a new molecule. One example of a chemical reaction is the rusting of a steel garbage can." by www.chem4kids.com
"In a chemical reaction, the atoms and molecules that interact with each other are called reactants.
In a chemical reaction, the atoms and molecules produced by the reaction are called products.
In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed.
In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products." by www.middleschoolchemistry.com
Ответ:
1. Identification of the problem or need.
2. Background search or literature review.
3. Analysis of results.
4. Communication of the findings.