true false

[Aakanksha]

True/False

1. Ions dissolve easily in water because water is polar in nature.

2. Water moderates the temperatures on earth because it can absorb and release large amounts of heat.

3. Buffers are chemicals that can both take up and release hydrogen ions, thus maintaining pH changes in a chemical system.

4. Carbon contains 6 valence electrons.

5. Carbon can form covalent bonds with as many as 4 other atoms.

6. Most isotopes are stable, but some are unstable and break apart, releasing radiation.

7. Electrons in different electron shells contain more energy if they are further from the nucleus.

8. Carbon compounds can from rings or long chains.

[Author]

Posts