Q: Elements with magic numbers of what tend to have more stable isotopes? Choices: - nucleus - pressure - molecules - protons A:
protons

Q: Double-replacement reactions generally occur between substances in what kind of solution? Choices: - solid - reactive - saline - aqueous A:
aqueous

Q: Q: What do you call the daily changes in the level of ocean water? Choices: - waves - shores - currents - tides A:
A: tides

Question: Q: What part of the ear is often described as a bony labyrinth? Choices: - embedded ear - solid ear - outer ear - inner ear A:
Answer: inner ear

*Question*
Q: This sharing of electrons produces what is known as a covalent bond. covalent bonds are ~20 to 50 times stronger than what? Choices: - Mendelian systems - Newton's third law - gravitational pull - van der waals interactions A:
**Answer**
van der waals interactions

Q: The electronegativity of an element increases with increasing of what state? Choices: - isolation - evaporation - conduction - oxidation A:
oxidation