Answer:
d Rubidium
Explanation:
The atomic radius of an atom is the distance from the center of the nucleus to its outermost electron.
The atomic radius of elements varies in the periodic table, it increases as you go down in a group and decreases along the period from left to right.
All the elements listed: Hydrogen, Sodium, Lithium and Rubidium belong to the same group in the periodic table (group 1), Since atomic radius increases from top to bottom in a group, Rubidium has the largest atomic radius.
It can form dipole-dipole interactions but that’s all
Answer: 368 grams of sodium reacted.
Explanation:
The balanced reaction is :
![\text{Moles of chlorine}=\frac{0.568\times 1000g}{71g/mol}=8moles](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20chlorine%7D%3D%5Cfrac%7B0.568%5Ctimes%201000g%7D%7B71g%2Fmol%7D%3D8moles)
According to stoichiometry :
2 moles of
are formed from = 2 moles of ![Na](https://tex.z-dn.net/?f=Na)
Thus 16 moles of
are formed from=
of ![Na](https://tex.z-dn.net/?f=Na)
Mass of ![Na=moles\times {\text {Molar mass}}=16moles\times 23g/mol=368g](https://tex.z-dn.net/?f=Na%3Dmoles%5Ctimes%20%7B%5Ctext%20%7BMolar%20mass%7D%7D%3D16moles%5Ctimes%2023g%2Fmol%3D368g)
Thus 368 grams of sodium reacted.
The large piece of jewelry that has a mass of 132.6 g and when is submerged in a graduated cylinder that initially contains 48.6 ml water and the volume increases to 61.2 ml once the piece of jewelry is submerged, has a density of: 10.523 g/ml
To solve this problem the formulas and the procedures that we have to use are:
Where:
- d= density
- m= mass
- v= volume
- v(f) = final volume
- v(i) = initial volume
Information about the problem:
- m = 132.6 g
- v(i) = 48.6 ml
- v(f) = 61.2 ml
- v = ?
- d =?
Applying the volume formula we get:
v = v(f)-v(i)
v = 61.2 ml - 48.6 ml
v = 12.6 ml
Applying the density formula we get:
d = m/v
d = 132.6 g/12.6 ml
d = 10.523 g/ml
<h3>What is density?</h3>
It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.
Learn more about density in: brainly.com/question/1354972
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