Answer:
Coke, coal gas, gas carbon, ammonia liquor, and coal oil
We can exemplify with H2O (water)
H= nonmetalic
O= Nonmetalic
A bond with nonmetalic and nonmetalic is covalent bond.
Hope it helps!!
#MissionExam001
Answer:
Explanation:
The heating process is modelled after the First Law of Thermodynamics:
The specific heat of the aluminium can is:
Answer:
a) 0.115 g
Explanation:
The balanced reaction is:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
To heat 55g of water, the energy in form of heat necessary can be calculated by:
Q = mcΔT
where Q is the heat, m is the mass, c is the specific heat (for water, c = 4.18 J/gºC), and ΔT is the variation of the temperature, which is 25ºC, so:
Q = 55x4.18x25
Q = 5747.5 J = 5.7475 kJ
So, for the reaction, 1 mol of CH₄ releases 802.3 kJ, so to release 5.7475 kJ will be necessary:
1 mol ---------------- 802.3 kJ
x ---------------- 5.7475 kJ
By a simple direct three rule:
802.3x = 5.7475
x = 7.164x10⁻³mol
The molar mass of CH₄ is : 12 (of C) + 4x1 (of H) = 16 g/mol
The mass is equal to the number of moles multiplied by molar mass, the:
m = 7.164x10⁻³x16
m = 0.115 g
Answer:
Explanation:
There are four quantum numbers:
Principal quantum number (n)
Azimuthal quantum number (l)
Magnetic quantum number (ml)
Spin quantum number (ms)
All these four quantum numbers gives complete information about an electron like its spin, shells, subshells and orbitals.
For example:
If l=3 than possible sets of quantum numbers are:
Azimuthal quantum number (l)
The azimuthal quantum number describe the shape of orbitals. Its value for s, p, d, f... are 0, 1, 2, 3. For l=3
(n-1)
4-1 = 3
it means principle quantum is 4 and electron is present in f subshell.
Magnetic quantum number (ml)
It describe the orientation of orbitals. Its values are -l to +l. For l=3 the ml will be -3 -2 -1 0 +1 +2 +3.
Spin quantum number (ms)
The spin quantum number tells the spin of electron either its clock wise (+1/2) or anti clock wise (-1/2).
If the electron is added in full empty orbital its spin will be +1/2 because it occupy full empty. If electron is already present and another electron is added then its spin will be -1/2.
