Answer:
In a chemical formula, the elements in a compound are represented by their chemical symbols, and the ratio of different elements is represented by subscripts.
Explanation:
Answer:
-24.76 kJ/g; -601.8 kJ/mol
Explanation:
There are two heat flows in this experiment.
Heat from reaction + heat absorbed by calorimeter = 0
q1 + q2 = 0
mΔH + CΔT = 0
Data:
m = 0.1375 g
C = 3024 J/°C
ΔT = 1.126 °C
Calculations:
0.1375ΔH + 3024 × 1.126 = 0
0.1375ΔH + 3405 = 0
0.1375ΔH = -3405
ΔH = -24 760 J/g = -24.76 kJ/g
ΔH = -24.76 kJ/g ×24.30 g/mol = -601.8 kJ/mol
The conclusion that you can draw about the electron
transitions that can take place for a magnesium atom is that the photons produced
are not of a lone wavelength, therefore from many dissimilar levels to
subsequent levels, with many different wavelengths joining to create white.
Explanation:
Most pigments work by absorbing certain wavelengths of light. Other wavelengths are reflected or scattered, which cause you to see those colours. At the atomic level, certain wavelengths of light are of the correct energy to excite specific transitions of electrons in the molecules or the solid.
As a covalent bond is a bond between atoms sharing electrons, a polar covalent bond is a covalent bond where the difference in electronegativity of the two atoms is uneven (one is greater than the other). This meaning that one atom will have a greater pull on the electrons towards them than the other and the share of electrons is uneven (definition of polar). A non polar covalent bond is one where the difference in E.N is small or non existent and the balance of shared electrons is even
