Volcano , bleach and fabuloso , flour and soap
Answer:
a thing that is composed of two or more separate elements; a mixture.
Explanation:
<h3>
Answer:</h3><h2>Covalent Bonds</h2>
<em><u>Carbon Forms Covalent Bonds</u></em>
<em><u>Carbon Forms Covalent BondsThe most common type of bond formed by carbon is a covalent bond. In most cases, carbon shares electrons with other atoms (usual valence of 4). This is because carbon typically bonds with elements which have a similar electronegativity.Jul 28, 2019</u></em>
Explanation:
<h3><em>Hope</em><em> it</em><em> works</em><em> out</em><em>!</em></h3>
<em>ᕦᶘ ᵒ</em><em>A</em><em>d</em><em>r</em><em>i</em><em>㉨</em><em>a</em><em>n</em><em>n</em><em>a</em><em>ᵒᶅᕤ</em>
Answer:
-1815.4 kJ/mol
Explanation:
Starting with standard enthalpies of formation you can calculate the standard enthalpy for the reaction doing this simple calculation:
∑ n *ΔH formation (products) - ∑ n *ΔH formation (reagents)
This is possible because enthalpy is state function meaning it only deppends on the initial and final state of the system (That's why is also possible to "mix" reactions with Hess Law to determine the enthalpy of a new reaction). Also the enthalpy of formation is the heat required to form the compound from pure elements, then products are just atoms of reagents organized in a different form.
In this case:
ΔH rxn = [(2 * -1675.7) - (3 * -520.0)] kJ/mol = -1815.4 kJ/mol
Elements cannot be broken down in this fashion.
Compounds, homogeneous mixtures, and heterogeneous mixtures can be broken down or separated with chemical processes, or in some cases, just by manual separation.
