Answer:
Nichrome
Answer: Hot water system coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).
Answer:
G<0, spontanteous
H<0, from equation
S>0, gas to solid
Explanation:
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. Water vapor readily adsorbs onto the surface of silica gel, so 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 of ΔG, ΔH, and ΔS.
G<0, spontanteous
H<0, from equation
S>0, gas to solid
Answer:
a) Gold: 5, 2, 2, -1/2
b) Magnesium
: 3, 0, 0, -1/2
c) Iodine: 5, 1, 0, -1/2
d) Cadmium: 4, 2, 2, -1/2
Explanation:
To understand Chemistry in its true sense, it is necessary to know the way the electrons are arranged within the atom and also understand the how and why of the bond and reactivity. To do this, you must first know the how and why of the electronic structure. , this can be done with quantum numbers.
The quantum numbers are four and they help us to describe the place of the electrons in the vicinity of the nucleus.
Sound waves are not a form of electromagnetic radiation
