Answer:
k = 1.26 x 10^-12
Its extremely small.
It follows that when k is small... The equilibrium concentration of Reactant is large and More than Product.
Option C should be your answer
There are two electrons in the outermost shell of calcium
Answer:
Electromagnetic energy and thermal energy. Those are the basic ones.
3)6 electrons and neon
<h3>Further explanation </h3>
In an atom there are levels of energy in the shell and sub shell
This energy level is expressed in the form of electron configurations.
The electron configuration Oxygen (atomic number = 8) :
<em>1s²2s²2p⁴</em>
Oxygen will try to achieve stability (according to the octet rule) by binding 2 electrons so that the 2p orbits are filled with 6 electrons, so that the configuration is stable like the noble gases Neon
<em>₁₀Ne = 1s² 2s² 2p⁶</em>
Answer:
- <em>Coal combustion</em> is burning coal to produce electricity, but it releases a lot of pollutants to the atmosphere.
Explanation:
<em>Coal combustion</em> is the process of burning coal to produce energy: the combustion releases heat which is used to heat water, producing steam which is used to move turbines and produce electricity.
The chemical equation for the combustion of pure coal is:
That is called complete combustion.
Incomplete combustion also happens:
CO₂ is a greenhouse gas, thus it is a pollutants.
Also, mined coal contain a lot of other elements, like sulfur (S), nitrogen (N), organic compounds, and heavy metals, which implies many side reactions. So, the combustion of coal releases a lot of pollutants to the atmosphere, which is why this is considered a dirty process.