2CH3OH + ?O2 2CO2 + 4H2O
9. How many molecules of O2 are needed to balance the chemical equation?
a. 1
b. 2
c. 3
d.4

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery