<h3>Answer:</h3>
C. 9
<h3>Explanation:</h3>
There are 2 electrons in the first shell, and 7 in the second, for a total of 9.
A flouride ion, on other hand, would have 8, since it fills that second shell with an extra electron (that's why it has a charge of -1)
Answer:
latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure.
Explanation:
The method that can be used to separate the mixture is chromatography.
<h3>
What is chromatography?</h3>
"Chromatography" is obtained form a Greek word which literarily means, color writing. It is a method of separation which is common in separating a mixture of pigments.
To obtain the colors used, two solvents are mixed and the sample ink is dissolved in the solvents then spotted on a thin layer and put into a TLC chamber then the chromatogram is allowed to develop.
The various components of the pigment will appear on the chromatogram and can be identified using spectrophotometry. The Rf values of each component can also be used to identify it.'
Learn more about chromatography: brainly.com/question/26491567
Answer: Either 1. the amount of energy in sound waves.
or 3. the total amount of change from one wave to the next.
Tell me which one is right please.
Answer:
CO2 molar mass=44.01g
3 moles CO2 = 132.03g
Explanation:
CO2 molar mass = 12.01+2(16.00)=44.01g
3 moles CO2 * (44.01 g CO2)/(1 mol CO2)=132.03g
(Answer would be different depending on the number of decimals)
