Problem:OPTIONS:
- quarks
- neutrons
- protons
- electrons

Q: According to the octet rule, magnesium is unstable because its valence shell has just two of what? A:
****
A: electrons

Q: What is the process of action potentials in myelinated axons jumping between the nodes of ranvier called? A:
OPTIONS:
- photoreactive conduction
- saltatory movement
- pinworm conduction
- saltatory conduction
saltatory conduction

Q: Substances that act as both weak acids and bases are said to be what? A:
OPTIONS:
- amphiphilic
- hygroscopic
- atmospheric
- amphoteric

Answer: amphoteric

Question: Q: Controlled variables are kept what to prevent them from influencing the effects of the independent variable on the dependent variable? A:
OPTIONS:
- mechanical
- temporary
- fleeting
- constant
Answer: constant

input with options: Q: Capacitors can be used to filter out low frequencies. for example, a capacitor in series with a sound reproduction system rids it of the 60 hz what? A:
OPTIONS:
- white noise
- vibration
- echo
- hum
output: hum

Problem: OPTIONS:
- technology
- invention
- battery
- machine
Q: Q: What do you call any device that makes work easier by changing a force? A:
Answer:
machine