Q: Covalent bond energies can be used to estimate the enthalpy changes of what? A:

OPTIONS:
- crystals reactions
- Pressure reactions
- liquid reactions
- chemical reactions

Answer: chemical reactions

Q: The help with diffusion comes from special proteins in the membrane known as what? A:

OPTIONS:
- lazy proteins
- navigation proteins
- installation proteins
- transport proteins

Answer: transport proteins

Q: What is defined in physics as the amount of force pushing against a given area? A:

OPTIONS:
- energy
- gravity
- resistance
- pressure

Answer: pressure

Q: Some materials have negative heats of solution; the dissolution of one of these solutes in water is called? A:

OPTIONS:
- endothermic process
- acetylene process
- ionized process
- exothermic process

Answer:
exothermic process