Construct an explanation for the formation of water from the combustion of hydrogen that demonstrates conservation of mass. Use scientific reasoning about bonds in the reactants and products, trends in the periodic table, patterns of outermost electrons, and Lewis dot diagrams or the octet rule to support your explanation. You may use the word bank and “gotta have it” checklist to help you write your response.

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.

What are fossils of organisms that existed over a wide area but only for a limited time period called?

Achemical reaction is done in the setup shown , resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?