Is the following equation balanced or unbalanced?
2. Nh+ H - NHA
Balanced
Unbalanced

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

Why are the trends and exceptions to the trends in ionization energy observed?

What are the 4 phases of matter in order of increasing engery content?