The answer is definitely 4. It has fewer electrons. This is because, whenever the electrons are few, they are positive. Positive electrons are anions, while the negative ones are cations. Hope i helped. Have a nice day.
Answer: The number of moles of
produced are, 0.287 moles.
Explanation : Given,
Mass of
= 14.9 g
Molar mass of
= 32 g/mol
First we have to calculate the moles of 


Now we have to calculate the moles of 
The balanced chemical equation is:

From the reaction, we conclude that
As, 13 mole of
react to give 8 moles of 
So, 0.466 mole of
react to give
mole of 
Therefore, the number of moles of
produced are, 0.287 moles.
Letter D.
The scarier the better, and many people like loops
Answer:
4.84 × 10⁻⁶ M
Explanation:
First, we will calculate the partial pressure of Ar (pAr) using the following expression.
pAr = P × χAr
where,
P: total pressure
χAr: mole fraction
pAr = P × χAr
pAr = 0.370 atm × 9.34 × 10⁻³
pAr = 3.46 × 10⁻³ atm
We can find the solubility of Ar in water (S) using Henry's law.
S = kH × pAr
where
kH: Henry's constant
S = kH × pAr
S = 1.40 × 10⁻³ M/atm × 3.46 × 10⁻³ atm
S = 4.84 × 10⁻⁶ M
Answer:
The most consistent mechanism is SN1.
Explanation:
The solvolysis of tert-butyl iodide in methanol will arise by the SN1 mechanism.
The reason for that is due the geometric structure of tert-butyl. The tertiary structure allows the formation of a stable carbocation, after the loss of the iodide ion. The carbocation will then be attacked by methanol molecules forming an eter.