The density of magnesium will be 1.74 g/cm³ if 23.5 g of magnesium occupies 13.5 cm³
<h3>What is Density ?</h3>
Density is the measurement of how tightly a material is packed together.
It is defined as the mass per unit volume.
Given ;
- Mass = 23.5 g
- Volume = 13.5 cm³
Formula to calculate density ;
Density = mass / volume
=23.5 / 13.5 = 1.74 g/cm³
Hence, the density of magnesium will be 1.74 g/cm³ if 23.5 g of magnesium occupies 13.5 cm³.
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Answer: a. False.
b. True
c. False
Explanation:
a. When a solution is made, the enthalpy of mixing is always a positive number.
This is false. It should be noted that the nature of reaction determine the enthalpy which can either be positive or can be negative.
b. An increase in entropy favors mixing.
This is true because when molecules get randomly distributed, they mix with one another. Therefore, an increase in entropy favors mixing.
c. A solute will dissolve in a solvent if solute-solute interactions are stronger than solute-solvent interactions.
This is false. This is because the solute-solute interactions have to be weaker and not stronger.
1) A
2)D
3)A
4)A
5)B
i might not be 100% correct, if i accidentally got something wrong, im terribly sorry!
Option Two is the only correct answer. There are two types of observation: qualitative and quantitative. Qualitative observation is when you use your senses to observe. Your senses can sometimes misinterpret information. This proves Option Two to be correct.
