How can you tell if a lab thermometer contains mercury, a toxic substance? a. the liquid would appear black. b. the liquid would appear silver. c. the thermometer is made of glass. d. the thermometer is made of plastic.

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %