Answer:
12 moles of F₂
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
N₂ + 3F₂ —> 2NF₃
From the balanced equation above,
3 moles of F₂ reacted to produce 2 moles of NF₃.
Finally, we shall determine the number of mole of F₂ needed to produce 8 moles of NF₃. This can be obtained as illustrated below:
From the balanced equation above,
3 moles of F₂ reacted to produce 2 moles of NF₃.
Therefore, Xmol of F₂ will react to produce 8 moles of NF₃ i.e
Xmol of F₂ = (3 × 8)/2
Xmol of F₂ = 12 moles
Thus, 12 moles of F₂ is needed for the reaction.
Answer:
<h3>a).</h3>
lithium fluoride => LiF
lithium chloride =>LiCl
lithium bromide => LiBr
lithium iodide => Lil
lithium oxide =>Li₂O
lithium sulfide => Li₂
<h3>b). </h3>
sodium fluoride => NaF
sodium chloride => NaCl
sodium bromide => NaBr
sodium iodide => Nal
sodium oxide => Na₂O
sodium sulfide => Na₂S
<h3>c). </h3>
potassium fluoride => KF
potassium chloride => KCl
potassium bromide => KBr
potassium iodide => KI
potassium oxide => K₂O
potassium sulfide => K₂S
<h3>d). </h3>
ammonium fluoride =>NH₄F
ammonium chloride => NH₄Cl
ammonium bromide => NH₄Br
ammonium iodide => NH₄I
ammonium sulfide => (NH₄)₂S
Answer:
1.08 x 10²⁵molecules
Explanation:
From the mole concept we know that ;
1 mole of any substance contains 6.02 x 10²³ molecules
This number is the Avogadro's number.
So;
18 mole of CH will contain:
Number of molecules of CH = 18 x 6.02 x 10²³ = 1.08 x 10²⁵molecules
The number of molecules is therefore 1.08 x 10²⁵molecules
The oxidation number of hydrogen in H2 reactant will be 0.
The number assigned to each element in a chemical combination would be the simplest definition of the oxidation number. The amount of electrons that atoms in a molecule could share, lose or gain during forming chemical connections with other atoms of such a particular character would be known as the oxidation number.
Hydrogen can be considered as free elements and it is known that free elements have 0 oxidation number .Here, H2 element is also as a free element. So, it has 0 oxidation number.
To know more about oxidation number
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Answer:
ZINC
Explanation:
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a silvery-greyish appearance when oxidation is removed. It is the first element in group 12 of the periodic table.
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