Answer:
2p
Explanation:
Sodium has an atomic number of 11, thus, the neutral atom has 11 electrons. The electron configuration is:
Na: 1s² 2s² 2p⁶ 3s¹
To gain stability, it loses an electron from its outer shell to form the cation Na⁺. Its electron configuration is:
Na⁺: 1s² 2s² 2p⁶
If it were to lose a second electron to form a Na²⁺ cation, the electron should be lost from the 2p orbital subshell and its electron configuration would be:
Na²⁺: 1s² 2s² 2p⁵
The density is calculated by mass and volume. The equation is density = mass/volume. So the answer is 52.457/13.5=3.886 g/cm3.
Answer:
(A) FeCl3 (aq) + 3 KOH (aq) → Fe(OH)3 (s) + 3 KCl (aq)
Explanation:
A precipitation reaction happens when a solid (called a precipitate) is formed due the reaction between anions and cations that were previously in aqueous solution.
In B there were no cations or anions that interacted
In C, and D, cations and anions interacted but no solid (precipitate was formed)
In E the cations interacted with a solid and no precipitate was formed.
A joule is equivalent to 0.000239006 kilo calories.
A newton times a meter is 1 joule.
A newton divided by a meter is a pascal.
A newton divided by a second is 1 m kg / s^<span>3.
A newton times a second is </span><span>1 m kg / s.</span><span>
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Answer:
The number of balloons is 948.8.
Explanation:
The number of balloons can be calculated as follows:
Where:
: is the volume at 1.086 atm
: is the balloon volume = 2.414 L
The volume at 1.086 atm can be found using Boyle's law:
Now, the number of balloons is:
Therefore, the number of balloons is 948.8.
I hope it helps you!