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What is the original solution if a crystal is added to an aqueous solution causes many particles to come out of the solution?
The addition of a crystal to an aqueous solution can act as a seed for the precipitation of solute particles out of the solution through a process known as crystallization. This occurs when the crystal provides a surface onto which the solute particles can adhere and form a solid precipitate, causing them to come out of the solution.
What will happen when a gram positive bacterium is placed in a aqueous solution of lysozyme and 10 percent sucrose?
The lysozyme will break down the peptidoglycan layer of the gram positive bacterium, causing it to lose its structural integrity and burst. The presence of sucrose will create a hypertonic environment, leading to osmotic dehydration of the bacterium due to water moving out of the cell, adding to its demise.
The sulfate mineral found on the surface of Mars that supports the presence of liquid water is called?
Jarosite is the sulfate mineral found on the surface of Mars that indicates the past presence of liquid water.
What energy transfer drives volcanic activity on Earth's surface?
The energy transfer that drives volcanic activity on Earth's surface is primarily due to the heat and pressure generated by the movement of molten rock (magma) from the Earth's mantle to the surface through volcanic vents. This process is driven by the heat generated by the Earth's core and mantle.
Photographs of the surface of Mars reveal the presence of sand dunes that shift over time. These dunes demonstrate the presence of what phenomenon on Mars?
winds
What is the original solution if a crystal is added to an aqueous solution causes many particles to come out of the solution?
The addition of a crystal to an aqueous solution can act as a seed for the precipitation of solute particles out of the solution through a process known as crystallization. This occurs when the crystal provides a surface onto which the solute particles can adhere and form a solid precipitate, causing them to come out of the solution.
Explain why the vapor pressure boiling point and freezing point of an aqueous solution if a nonvolatile solute are not the same as those of the pure solvent?
The presence of a nonvolatile solute in an aqueous solution lowers the vapor pressure of the solution, raising its boiling point and lowering its freezing point compared to the pure solvent. This occurs due to the solute molecules occupying space at the surface of the solution, reducing the number of solvent molecules escaping into the vapor phase. As a result, a higher temperature is needed to reach the same vapor pressure as the pure solvent for boiling, and a lower temperature is needed for the solution to freeze.
Why phospholipids form a thin layer on the surface of aqueous solution?
Phospholipids have a hydrophilic head and two hydrophobic tails each. When phospholipids are exposed to water, they arrange themselves in a bi-layer sheet with the tails facing towards the center of the sheet, and away from the water.
What happens when a silver spoon is kept immersed in aqueous copper sulphate solution?
When a silver spoon is immersed in aqueous copper sulphate solution, a displacement reaction occurs. The silver spoon will react with the copper sulphate, displacing the copper ions and forming silver sulphate solution. Over time, the silver spoon will start to turn slightly reddish as a thin layer of copper is deposited on its surface.
How is wind generated and what factors contribute to its formation?
Wind is generated by the movement of air from areas of high pressure to areas of low pressure. Factors that contribute to the formation of wind include the uneven heating of the Earth's surface, the rotation of the Earth, and the presence of natural barriers like mountains and bodies of water.
How does the presence of alcohol affect the mixing behavior of water?
The presence of alcohol can affect the mixing behavior of water by changing the surface tension and viscosity of the solution. This can lead to different levels of solubility and interactions between the alcohol and water molecules, impacting how they mix together.
How do you classify the earth?
One view The Earth can be classified as a habitable planet (and it is the only one we presently know of). Another view A rocky planet characterised by the presence of liquid water and a chemically far-from-equilibrium atmosphere generated by the living organisms that populate its surface.
Why phospholipids form a thin layer on the surface of an aqueous solution?
Phospholipids form a thin layer on the surface of an aqueous solution due to their amphipathic nature. The hydrophobic tails of the phospholipids are repelled by water and thus orient themselves towards each other, while the hydrophilic heads are attracted to the water molecules, resulting in the formation of a stable lipid bilayer at the surface. This arrangement minimizes the exposure of the hydrophobic tails to water, creating a barrier that separates the aqueous environment from the hydrophobic core of the phospholipids.
What condition is needed to evaporate surface?
presence of heat energy
What will happen when a gram positive bacterium is placed in a aqueous solution of lysozyme and 10 percent sucrose?
The lysozyme will break down the peptidoglycan layer of the gram positive bacterium, causing it to lose its structural integrity and burst. The presence of sucrose will create a hypertonic environment, leading to osmotic dehydration of the bacterium due to water moving out of the cell, adding to its demise.
When something is dissolving is it a solid or an aqueous solution?
When a solid such as table salt is placed in a liquid that dissolves it (a solvent) such as water, it dissolves and passes into solution. When it is all dissolved there is no solid left, only the liquid salt solution. It is still solid while it is dissolving as the dissolution action can only take place at the surface of the solid. Removal of salt ions (sodium and chlorine atoms) from the solid exposes more solid underneath until all the solid is dissolved.
The sulfate mineral found on the surface of Mars that supports the presence of liquid water is called?
Jarosite is the sulfate mineral found on the surface of Mars that indicates the past presence of liquid water.
