If 0.00345 grams of NaCl are added to 2.75 L of water then what is the concentration of the salt in parts per million? (Hint - use the density of water)

How air particles exert a pressure on the inside of the balloon

What shape would a molecule with two bound groups and two lone pairs have?

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.