It is often helpful to remember the acronym PASS when using a fire extinguisher. Fill in the word that corresponds with eac letter to complete the steps needed for operation of this device. P: the pin
A: the nozzle at the base of the fire.
S: the lever slowly
S: the spray from side to side over the fire.

What is the solubility-product constant of barium sulfate, baso4, if a saturated solution is 1.03 ´ 10-5 m?

Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.