Q: What is the the force of attraction that holds together ions? Choices: - covalent bond - soluble bond - magnetic bond - ionic bond A:
ionic bond

Q: The brain and spinal cord are part of what system, which serves as a control center? Choices: - primary nervous system - active nervous system - large nervous system - central nervous system A:
central nervous system

Q: Q: How does litmus paper indicate the ph value of a solution? Choices: - by texture - by shape - by smell - by color A:
A: by color

Question: Q: When an ionic compound dissociates in water, water molecules surround each ion and separate it from the rest of the what? Choices: - electron shell - mixture - gas - solid A:
Answer: solid

*Question*
Q: Most ocean waves are caused by what? Choices: - radiation - animals - gravity - wind A:
**Answer**
wind

Q: Q: What crystals consist of molecules at the lattice points of the crystal, held together by relatively weak intermolecular forces? Choices: - quartz crystals - salt crystals - healing crystals - molecular crystals A:
A: molecular crystals