Answer:
the density of lithium will be equal to: 0.582 g/cm^3
Explanation:
We have the following data:
a = 430 pm = 4.3x10^-8 cm
molar mass of lithium MM = 6.97 g/mol
Since the cubic cell of lithium is cubic centered in the face, its value of Z will be equal to 4
Avogadro´s number AN = 6.022x10^23 particles/mol
using the following formula we will calculate the density of lithium:
d = (Z*MM)/(a^3*AN) = (4*6.97)/((4.3x10^-8)^3*(6.022x10^23)) = 0.582 g/cm^3
Physical! Because they do not modify the nature of the substance ( if you look at the chemical level) and it is reversible
Vapor is H20
Water is H20
Ice is H20
A chemical changes is not reversible
Burning wood for example! And the reactants interact together to form a new product.
Answer:
3 is decomposition
4 is double replacement
Explanation:
In decomposition reactions, a compound (two or more elements) are broken down into singular elements.
Double replacement reactions have two different compounds, one element from a compound switches with another element in the other compound.
Answer:
I hope that the answer helps. I did not round the final answer, maybe you want the answer in a specific decimal place!
Explanation:
If fluorine is stronger than carbon, fluorine will receive a negative charge.
<h3>WHAT IS THE ELECTRONEGATIVITY SERIES?</h3>
The electronegativity series is the order in which elements of the periodic table are ranked in terms of their negative charges.
Elements with higher electron affinity are positioned higher in the series. According to this question, fluorine is stronger than carbon.
This means that fluorine will receive a negative charge (-) to become more electronegative.
Learn more about electronegativity series at: brainly.com/question/2060520
