Two atoms of potassium react with one molecule of chlorine to produce two molecules of potassium chloride. Option B
<h3>What is a chemical reaction equation?</h3>
The term chemical reaction equation has to do with the interaction between reactants and products. It deals with the process in which reactants are changed into products in a chemical reaction.
A word equation is an equation that uses words rather than the symbol of the elements that are involved. We are asked to write the equation in words. The sentence that aptly captures the reaction as it is written is; two atoms of potassium react with one molecule of chlorine to produce two molecules of potassium chloride.
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Answer:
Explanation:
The element CARBON enters the body in two NATURAL ways.
First is through eating and drinking. Almost all food that we eat contain the element carbon. As the ingested food reaches the digestive system, food is broken down into smaller pieces up until the molecular level. Some molecules are taken into the circulation, while others are excreted down as feces.
Second is by breathing. Certain air molecules contain carbon. One major air molecule is CARBON DIOXIDE. Some molecules are inhaled, but usually, CARBON DIOXIDE should be excreted from the body.
Unnatural ways when CARBON could enter the body is by medical intervention, as in intravenous injections, surgery, etc
<u>Answer:</u> The wavelength of spectral line is 656 nm
<u>Explanation:</u>
To calculate the wavelength of light, we use Rydberg's Equation:
Where,
= Wavelength of radiation
= Rydberg's Constant =
= Final energy level = 2
= Initial energy level = 3
Putting the values in above equation, we get:
Converting this into nanometers, we use the conversion factor:
So,
Hence, the wavelength of spectral line is 656 nm