Original Project
Substances, Chemical Reactions, and Conservation of Matter
Item SC070004: During a chemical reaction, atoms stay the same but rearrange to form new molecules. (This item uses circles to represent atoms.)
Which of the following could represent a chemical reaction?
Atoms are represented by circles, and molecules are represented by circles that are connected to each other. The different colored circles represent different kinds of atoms.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 2710 |
6–8 n = 1593 |
9–12 n = 1095 |
Male n = 1293 |
Female n = 1361 |
English n = 2382 |
Other n = 259 |
||
| A. |
 |
20% | 22% | 17% | 21% | 20% | 20% | 22% |
| B. |
 |
22% | 23% | 22% | 24% | 21% | 22% | 25% |
| C. |
 |
42% | 38% | 48% | 41% | 43% | 42% | 39% |
| D. |
 |
16% | 17% | 13% | 15% | 16% | 16% | 14% |