What does the chemical formula cacl2 show about the compound it represents?
2 answers:
Answer:
The compound represents that calcium chloride is an ionic salt made up of 1 calcium ion and 2 chloride ions.
Explanation:
The given chemical formula is of calcium chloride salt.
The chemical formula represents that 1 atom calcium binds with two atoms of chlorine to form a single molecule of calcium chloride.
It is an ionic salt made up 1 calcium ion and 2 chloride ions.
Calcium has atomic number of 20 and chlorine has atomic number of 17. Calcium will loose 2 electrons to gain noble gas stability whereas chlorine atom will gain 1 electron to gain noble gas stability.
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Answer:
x = 0.324 M s⁻¹
Explanation:
Equation for the reaction can be represented as:
2 NO(g) + Cl₂ (g) ⇄ 2NOCl (g)
Rate = K [NO]² [Cl₂]
Concentration =
from the question; their number of moles are constant since the species are quite alike.
As such; if Concentration varies inversely proportional to the volume;
we have: Concentration ∝
Concentration =
Similarly; the Rate can now be expressed as:
Rate = K [NO]² [Cl₂]
Rate =
Rate =
We were also told that the in the reaction, the gaseous system has an initial volume of 3.00 L and rate of formation of 0.0120 Ms⁻¹
So we can have:
0.0120 =
0.0120 = -----Equation (1)
Now; the new rate of formation when the volume of the system decreased to 1.00 L can now be calculated as:
x =
x = 1 ------- Equation (2)
Dividing equation (2) with equation (1); we have:
=
=
x = 0.0120 × 27
x = 0.324 M s⁻¹
∴ the new rate of formation of NOCl = 0.324 M s⁻¹