Justine’s hair dryer has a resistance of 20 Ohms when first turned on. How much current does the hair dryer draw from the 110.-V line in Justine’s house? (Answer in amps)

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution