I believe the statement is true. The heat transfer involved here is called conduction. It is one type of heat transfer where it caused by the collisions of the particles in a certain body. As the you add heat to the object, the kinetic energy of the molecules increases therefore more collisions could happen which would mean energy is dissipated or transferred from molecule to molecule.<span />
The formed HCl concentration is 17.6g, and the limiting reactant is hydrogen.
<h3>What is limiting reactant?</h3>
In this case, based on the information provided, we can calculate the required grams of HCl by first identifying the limiting reactant using the moles of each reactant, which are in a 1:1 mole ratio:
nH₂ = .490gH₂ x 1 mol H₂ / 2.02g H₂ = 0.242 mol H₂
nCl₂ = 50.0gCl₂ x 1 mol Cl₂ / 70.9g Cl₂ = 0.705mol Cl₂
As a result, we conclude that hydrogen is the limiting reactant, and we use a 1:2 mole ratio with HCl, whose molar mass is 36.46 g/mol:
mHCl = .242 mol H₂ x 2mol HCl / 1 mol H₂ x 36.6g HCl / 1mol HCl
mHCl = 17.6g HCL
Therefore the concentration of HCl formed is 17.6g and the limiting reactant is hydrogen.
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Because hydrogen and oxygen are two elements on the periodic table, water is composed of three atoms, forming a single molecule, and air is one of the components of water.
Answer:
The isotope with mass 6.015amu =7.5% abundance
The isotope with mass 7.016amu = 92.5%
Explanation:
<u>Step 1:</u> Given data
Lithium has an average atomic mass of 6.941 amu
Lithium has 2 isotopos with a mass, respectively 6.015amu and 7.016amu
<u>Step 2: </u>Calculate the abundances
Isotope with mass 6.015 amu has an abundance of X
Isotope with mass 7.016 amu has an abundance of Y
The average atomic mass is the average mass of the isotopes with its respectively abundance.
X+Y = 1 or X = 1 - Y
6.941 = 6.015X +7.016Y
This gives us:
6.941 = 6.015(1-Y) +7.016Y
6.941 = 6.015 - 6.015Y + 7.016Y
6.941 - 6.015 = -6.015Y +7.016Y
0.926 = 1.001Y
Y = 0.925
Y = 92.5%
X = 1- 92.5 = 7.5%
To control we can do the following equation:
6.015*0.075 + 7.016*0.925 = 6.941
This means the abundances of the 2 isotopes are:
The isotope with mass 6.015amu =7.5% abundance
The isotope with mass 7.016amu = 92.5%
Answer: FeO is called ferrous oxide while Fe2O3 is ferric oxide
Explanation:
Ferrous oxide, commonly known as iron(II) oxide contains iron that lost 2 elections in the oxidation process. So it is able to bond with other atoms that have an extra 2 electrons to share. Ferric oxide, is commonly known as iron(III) oxide
