Determine the theoretical yield of h 2s (in moles) if 18 mol al 2s 3 and 18 mol h 2o are reacted according to the following balanced reaction. Al 2s 3( s) + 6 h 2o( l) → 2 al(oh) 3( s) + 3 h 2s( g).

Which of the following is a presentation cue? a. crossing your arms b. mumbling c. repeating words d. whistling

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same

The different layers of gases that extend form the surface of the earth into space