Answer:
Explanation:
<u>1) Reactants:</u>
The reactants are:
- <em>Molecular chlorine</em>: this is a gas diatomic molecule, i.e. Cl₂ (g)
- <em>Molecular fluorine</em>: this is also a gas diatomic molecule: F₂ (g)
<u>2) Stoichiometric coefficients:</u>
- <em>One volume of Cl₂ react with three volumes of F₂</em> means that the reaction is represented with coefficients 1 for Cl₂ and 3 for F₂. So, the reactant side of the chemical equation is:
Cl₂ (g) + 3F₂ (g) →
<u>3) Product:</u>
- It is said that the reaction yields <em>two volumes of a gaseous product;</em> then, a mass balance indicates that the two volumes must contain 2 parts of Cl and 6 parts of F. So, one volume must contain 1 part of Cl and 3 parts of F. That is easy to see in the complete chemical equation:
Cl₂ (g) + 3F₂ (g) → 2Cl F₃ (g)
As you see, that last equation si balanced: 2 atoms of Cl and 6 atoms of F on each side, and you conclude that the formula of the product is ClF₃.
Answer:
Metals Good conductors of electricity good conductors of heat
High density
Malleable and ductile
Non-metals
Poor conductors of electricity
Poor conductors of heat
Low density
brittle
The principal quantum number is just the first quantum number out of 5. It actually depends on what value of n. See the attached picture for the ordered arrangement of orbitals. For example, when n=2, we have: 2s2p. Each s holds 1 orbital, p has 3 orbitals, d has 5 orbitals and f has 7 orbitals. So, for n=2, there are 4 total orbitals.
Answer:
Fe3+ + 3e– --------> Fe
Explanation:
Reduction refers to a gain of electrons. A specie is said to be reduced when it gains electrons or when it experiences a decrease in oxidation number. The both sentences above can be clearly seen when inspecting a reduction half equation.
Consider the redox reaction half equation;
Fe3+ + 3e– ------>Fe
We can see that Fe^3+ accepted three electrons, the oxidation number of iron thereby decreased from +3 to zero from left to right. This implies that the Fe^3+ was actually reduced according to the equation shown.