ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG034004: Energy is always required to separate atoms of reactant molecules.
During chemical reactions, atoms that make up the molecules of the starting substances are separated from each other. Is energy required to separate the atoms, or is energy released when the atoms are separated?
- Energy is always required to separate atoms of the reactant molecules.
- Energy is always released when atoms of the reactant molecules are separated.
- Whether energy is released or required depends on the temperature of the system.
- Whether energy is released or required depends on the types of atoms that are separated.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 521
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 988 | 3169 | 31% |
| Grades | |||
| 4–5 | N/A | N/A | N/A |
| 6–8 | 459 | 1602 | 29% |
| 9–12 | 529 | 1567 | 34% |
| Gender | |||
| Male | 473 | 1475 | 32% |
| Female | 494 | 1613 | 31% |
| Primary Language | |||
| English | 893 | 2815 | 32% |
| Other | 68 | 252 | 27% |