The metallic bond between gold atoms makes it possible to create extremely thin sheets.
Atoms of the same element or atoms from different elements can form three types of bonds:
- Covalent bonds.
- Ionic bonds.
- Metallic bonds.
In the case of metals such as gold, the most common type of bond is the metallic bond. This bond:
- Is a strong bond.
- Involves the free movement of electrons between atoms.
- Makes metals highly malleable.
These characteristics explain the reason why it is possible to create extremely thin sheets as the material will not easily break due to the strong attraction between the atoms.
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The molar mass of stearic acid is 18*AC+36*AH+2*AO=18*12+36*1+16*2=284g/mol.
n=m/M=2.831/284=0.01 moles
C18H36O2+27O2-->18CO2+18H2O
we have 18*0.01=0.18 moles of CO2
18*0.01=0.18 moles of H2O
0.01*948=9.48kJ from stearic acid
0.18*393.5=70.83kJ from CO2
0.18*241.826=43.52kJ from H2O
9.48+70.83+43.52=123.83kJ
123.83*4.184=518.10kcal
Answer:
If liquid bromine is cooled to form a solid, which type of solid does it form? Brass is made by melting copper and zinc and physically mixing them. As this alloy is cooled, it forms a solid where the copper and zinc are not chemically bonded together.
Explanation:
Explanation:
The given data is as follows.
Now, according to Michaelis-Menten kinetics,
where, S = substrate concentration = M
Now, putting the given values into the above formula as follows.
=
This means that would approache .
There are 2.5 oxygen for every phosphorus atom.