Q: All solutions contain at least how many substances? Choices: - one - four - three - two A:
two

Q: What is required to partially overcome the attractive forces between molecules in a solid to form a liquid? Choices: - fuel - hydrogen - oxygen - energy A:
energy

Q: Q: What is the atomic number of magnesium? Choices: - 17 - 25 - 8 - 12 A:
A: 12

Question: Q: The presence of solute particles blocks some of the ability for liquid particles to do what? Choices: - melt - fuse - dissolve - evaporate A:
Answer: evaporate

*Question*
Q: Which state of matter is characterized by molecules with minimal movement and strong forces between them? Choices: - plasma - liquid - gas - solid A:
**Answer**
solid

*Question*
Q: The e. coli chromosome, like many other bacterial chromosomes, is what shape? Choices: - oval - square - triangular - circular A:
**Answer**
circular