A. It shows quantitative data that relates two variables
The volume of this sapphire in cubic centimeters is 24.4 cm^3
We have the following information;
Mass of the Blue Giant = 486.52 carats
Density of the blue giant = 3.98 g/cm3
Volume of the blue giant = ?
Since the density is given in g/cm3, we must convert the mass to grams.
We have the conversion factor; 5
carats =
1
g
So;
If 5 carats make 1g
486.52 carats make 486.52 carats × 1g/ 5 carats
= 97.30 g
Since;
Density = mass/volume
Volume = Mass/Density
Volume = 97.30 g/3.98 g/cm3
Volume = 24.4 cm^3
Learn more: brainly.com/question/6034174
<span>Molecular substances tend to be gases, liquids or low melting point solids, because the intermolecular forces of attraction are comparatively weak.
I hope this helps somehow if not I'm sure i can give you a website that might help answer your question further
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Answer:
Explanation:
<u>Given Data:</u>
Mole = n = 3.38 mol
Temp = t = 269 K
Pressure = 1.19 atm
Gas constant = R = 0.08206 L atm K⁻¹ mol⁻¹
<u>Required:</u>
Volume = v = ?
<u>Formula:</u>
Pv = nRT
<u>Solution:</u>
Rearranging formula
![\displaystyle v = \frac{nRT}{P} \\\\v = \frac{(3.38)(0.08206)(269)}{1.19} \\\\v = \frac{74.6}{1.19} \\\\v = 62.7 \ L\\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20v%20%3D%20%5Cfrac%7BnRT%7D%7BP%7D%20%5C%5C%5C%5Cv%20%3D%20%5Cfrac%7B%283.38%29%280.08206%29%28269%29%7D%7B1.19%7D%20%5C%5C%5C%5Cv%20%3D%20%5Cfrac%7B74.6%7D%7B1.19%7D%20%5C%5C%5C%5Cv%20%3D%2062.7%20%5C%20L%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
Ca^2+
Explanation:
As we know, more energy is required to remove an electron from a positively charged ion than is required to remove an electron from a neutral atom. Hence, the second ionization energy of calcium is greater than its first ionization energy.
However, the third and fourth ionization energies of calcium are much higher than the second ionization energy because they involve removal of electrons from an inner filed shell. This process requires a lot of energy and is often not feasible.
Hence, the most common ion of calcium must be Ca^2+ where only two electrons are removed from calcium.
