PLEASE HELP 30 POINTS! Please have the info correct.

The chart below has several missing boxes. Fill them in with the characteristics of metals, nonmetals, and metalloids.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell