Chemistry, 26.10.2019 03:43, silveryflight
During world war ii, a portable source of hydrogen gas was needed for weather balloons, and solid metal hydrides were the most convenient form. many metal hydrides react with water to generate the metal hydroxide and hydrogen. two candidates were lithium hydride and magnesium hydride. what volume of gas is formed from 1.95 lb of each hydride at 750. torr and 27°c?
Answers: 1
Chemistry, 22.06.2019 00:00, chameleonsarelife
Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what
Answers: 3
Chemistry, 22.06.2019 17:20, phanuel642
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.
Answers: 2
Chemistry, 23.06.2019 06:00, BigGirlsTheBest
Amanda pushes a box across the room with a force of 30 n. it accelerates at 5 m/s/s. what is the mass of the box? * 6 kg 1.16 kg 30 kg 5kg
Answers: 2
During world war ii, a portable source of hydrogen gas was needed for weather balloons, and solid me...
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