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Misconception SCM021:

After a chemical reaction, the product is a mixture in which the old substances persist, and is not a new substance (Johnson, 2000b; Solomonidou & Stavridou, 2000).

Items that test for misconception SCM021 in this project (Original Project) and key idea (When substances interact to form ne…)
Item ID
Number

Item Description

How Often the Misconception was Chosen

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SC070004

During a chemical reaction, atoms stay the same but rearrange to form new molecules. (This item uses circles to represent atoms.)

22%

SC093003

During a chemical reaction, atoms stay the same but rearrange to form new molecules. (This item uses circles to represent atoms.)

10%