15 POINTS (TWO QUESTIONS) What type of energy is tearing a paper?

1.thermal
2.sound
3.light
4.electrical
5.mechanical

What type of energy is riding a bike

1.thermal
2.sound
3.light
4.electrical
5.mechanical

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

Summarize possible ways in which phases of matter could combine to form a solution.