Q: Chewing a bite of bread mixes it with what and facilitates its chemical breakdown? Choices: - chyme - calcium - interstitial fluid - saliva A:
saliva

Q: The mass lost in mass defect has gone into energy called what? Choices: - momentum - enthalpy - kinetic energy - binding energy A:
binding energy

Q: Q: Which model helps explain molecules with double or triple bonds? Choices: - salinity model - reactivity model - particle model - hybridization model A:
A: hybridization model

Question: Q: What element chemically weathers rock by combining with a metal? Choices: - nitrogen - carbon - hydrogen - oxygen A:
Answer: oxygen

*Question*
Q: When members of the same species compete for the same resources, it is called what? Choices: - interspecies competition - natural selection - extinction - intraspecific competition A:
**Answer**
intraspecific competition

(Q).
Q: Name the one metal that melts below room temperature? Choices: - aluminum - gold - bronze - mercury A:
(A).
mercury