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Why is A metal with a lower valency is more likely to dissolve in one which has a higher valency?
A metal with a lower valency is more likely to dissolve in a solution containing a metal with a higher valency because the metal with higher valency has a greater ability to attract and pull away electrons from the metal with lower valency, causing it to dissolve and form ions in the solution. This process, known as a redox reaction, leads to the transfer of electrons from the metal with lower valency to the metal with higher valency, resulting in the dissolution of the metal with lower valency.
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What are the four Hume-Rothery rules for the solid solubility of one element in another?
If a solute differs in its atomic size by more than about 15% from the host, then it is likely to have a low solubility in that metal. The size factor is said to be unfavourable.If a solute has a large difference in electronegativity (or electropositivity) when compared with the host, then it is more likely to form a compound. Its solibility in the host would therefore be limited.A metal with a lower valency is more likely to dissolve in one which has a higher valency, than vice versa.
Do gases dissolve better at a higher temperature?
More gas dissolves into the liquid.
What is the pH of an acidic compound is most likely to be?
The pH of an acidic compound is most likely to be below 7, typically ranging from 0 to 6. Acids release hydrogen ions (H+) when they dissolve in water, lowering the pH of the solution. The lower the pH value, the higher the acidity of the compound.
Why ethanol is the best solvent for recrystallization of urea?
Ethanol is a good solvent for recrystallization of urea because it has the ability to dissolve urea at higher temperatures and allows for selective precipitation at lower temperatures, resulting in purer crystals. Additionally, ethanol is a relatively non-toxic solvent and is readily available, making it a practical choice for recrystallization processes.
Why is cold solvent used to wash crystals after the mother liquor is removed?
Usually, solvents at lower temperature can dissolve lower amount of crystals than solvents at higher temperatures. For eg. if impurity is salt then you are better off washing it at a lower temperature as salts have a good solubility even at lower temperatures and as you raise temperature your crystals will start dissolving in the warm solvent.
Does solid dissolves more quickly in wter of higher temperature than lower temperature?
Solids dissolve in water of a higher or lower temperature depending on what the solid actually is.
What is the valency of oxygen in suboxides?
The valency of oxygen in suboxides can vary, but it is typically less than its usual valency of 2 in oxides. Suboxides contain oxygen atoms with a valency of 1 or less, resulting in a lower overall valency for oxygen in these compounds.
An insurance policy with a higher premium most likely has?
a lower deductible
What are the four Hume-Rothery rules for the solid solubility of one element in another?
If a solute differs in its atomic size by more than about 15% from the host, then it is likely to have a low solubility in that metal. The size factor is said to be unfavourable.If a solute has a large difference in electronegativity (or electropositivity) when compared with the host, then it is more likely to form a compound. Its solibility in the host would therefore be limited.A metal with a lower valency is more likely to dissolve in one which has a higher valency, than vice versa.
Do gases dissolve better at a higher temperature?
More gas dissolves into the liquid.
What is the pH of an acidic compound is most likely to be?
The pH of an acidic compound is most likely to be below 7, typically ranging from 0 to 6. Acids release hydrogen ions (H+) when they dissolve in water, lowering the pH of the solution. The lower the pH value, the higher the acidity of the compound.
Downs and Lyons said judges did what to less attractive defendants?
If a person was deemed to have a higher level of attractiveness then they were more likely to get lower fines by Texas judges, so if people were believed to have a lower level of attractiveness they were more likely to get higher fines.
Air moves from where pressure is higher to lower or lower to higher?
Higher to lower.
What happens to water potential if you dissolve a sugar into water?
The water potential decreases when you dissolve sugar in water because the addition of solute particles reduces the availability of free water molecules. This decrease in water potential is due to the lowering of the chemical potential of water as it becomes less likely to move from an area of higher water potential to an area of lower water potential.
Electrons flow from areas of higher to lower voltage or from areas of lower to higher voltage?
Electronsflow from areas of lower to higher voltage, while Current flow from areas higher to lower voltage.
What does a bladderwort plant ooze to dissolve bugs?
Digestive enzymes are the oozings that bladderwort plants use to dissolve bugs. The carnivorous plants in question (Utricaria spp) employ aminopeptidase and phosphatase in higher or lower levels with higher or lower pH readings according to ecosystems and to species. For example, trap fluid pH may range from an acidic 4.1 to an alkaline 7.3, and phosphatase tends to predominate among European species.
Does a higher down payment result in a lower interest rate?
In general, a higher down payment can result in a lower interest rate on a loan. This is because a larger down payment reduces the lender's risk, making them more likely to offer a lower interest rate.
