Answer:
3.72
Explanation:
Given data:
Mass of object = 82.2 g
Volume of water = 25.0 mL
Volume of water + object = 47.1 mL
Density of object = ?
Solution:
Volume of object:
Volume of object = (Volume of water + object) - Volume of water
Volume of object = 47.1 mL - 25.0 mL
Volume of object = 22.1 mL
Density of object:
d = 82.2 g/ 22.1 mL
d = 3.72 g/mL
Answer:
Pressure and volume have an inverse relationship when temperature is constant. This is Boyle's Law.
Explanation:
P1V1=P2V2
Solids hold their shape and have a fixed volume. The molecules in solids are packed closely together and could not be moved. Solids also have a slow diffusion and low vapor pressure. Hope that helped!
Answer:
The valence shell (the 3s and 3p sublevels) contains six electrons, but it needs eight to become stable. Think of the octet rule. Therefore a sulfur atom will gain two electrons to form the sulfide anion with a charge of 2− , with the symbol S2− .
Answer: The key difference between dissociation and solvation is that dissociation is the breakdown of a substance into the atoms or ions from which the substance is made of whereas solvation is the dissolution of a substance in a solvent due to the attraction forces between the solvent molecules.