Cecil writes the equation for the reaction of hydrogen and oxygen below.
h2 o2 → h2o
why does his teacher ask him to balance the equation by including the correct coefficients?

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.