I think the right choice is C. Coal, as it's utilized in making a multitude of products across the globe. I trust this information is useful to you.:)
Students dealing with ionic bonds comprehend better how to convey what the model should showcase.
Explanation:
- Upon dissolving ionic compounds in water, the compounds separate into their constituent ions via a process called dissociation.
- The ions become attracted to water molecules, which carry a polar charge.
- If the pull between the ions and the water molecules is strong enough to disband the ionic bonds, the compound dissolves.
- The ions disperse in the solution, each surrounded by water molecules to inhibit reattachment.
- The ionic solution forms an electrolyte, allowing it to conduct electricity.
- In contrast, while covalent compounds do dissolve in water, they separate into molecules, not individual atoms.
- Water acts as a polar solvent, yet covalent compounds are generally nonpolar.
- This implies that covalent compounds often do not dissolve in water and instead form a distinct layer on top of the water.
Boyle's law describes the relationship between gas pressure and volume.
It asserts that at a constant temperature, pressure is inversely proportional to gas volume.
PV = k
where P represents pressure, V denotes volume, and k is a constant.
P1V1 = P2V2
where the parameters for the initial condition are on the left, and the parameters for the second condition appear on the right side of the formula.
By substituting values into the equation: 4.00 atm x 500 L = 8.0 atm x V
V calculates to 250 L.
Thus, the new volume becomes 250 L.
Answer:
The heat capacity of the calorimeter is 
= 54.4 
Explanation:
Given the data
Heat supplied Q = 4.168 KJ = 4168 J
Mass of water 
= 75.40 gm
Change in temperature = ΔT = 35.82 - 24.58 = 11.24 °C
From the conditions provided
Q = 
ΔT + ΔT
Plugging all values into the above equation yields
4168 = 75.70 × 4.18 × 11.24 + × 11.24
611.37 = × 11.24
= 54.4
This represents the heat capacity of the calorimeter.
I hope you can decipher it and that it's also accurate. Wishing you all the best.
