What scientist developed a model of the atom that looked like a nucleus surrounded by electrons

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.