A scientist heats a red powder. Upon heating, a liquid and a gas form. Which type of substance is the red powder?
O A. anion
B. an isotope
O c. an element
O D. a compound

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.