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Because... if it's tightly sealed - during cooling the volume of the solvent will decrease - making the pressure inside lower than outside he flask. This could be enough for the glass to shatter - spilling the contents.

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Why a conical flask containing a hot solution is not tightly stoppered to prevent solvent during cooling?

Because... if it's tightly sealed - during cooling the volume of the solvent will decrease - making the pressure inside lower than outside he flask. This could be enough for the glass to shatter - spilling the contents.


Can sodium hydroxide be stored in a Erlenmeyer flask?

In a tightly sealed container, preferably one that doesn't have a lot of moisture in the air. The container should be a plastic container as glass container can react with sodium hydroxide and melt.


What crushes a tightly corked tin can containing steam when cold water is poured on it?

When cold water is poured on a tightly corked tin can containing steam, the rapid cooling of the steam creates a pressure difference that causes the can to crush. The steam condenses into water, leaving a vacuum inside the can. The external atmospheric pressure then crushes the can due to the lack of pressure inside.


What is the difference between heterochromatic and euchromatic regions of the genome?

Heterochromatic regions of the genome are tightly packed and less active, containing genes that are usually turned off. Euchromatic regions are loosely packed and more active, containing genes that are typically turned on.


When cold water is poured over a tightly corked tin can containing steam the tin can gets crushed What crushes the tin can?

Air pressure from outside and vacuum effect from inside.


Will a rock containing quartz weather fast or slow?

Slow because Quartz is a very stable mineral at the Earth's surface and is very tightly bound giving it very unusual and useful properties.


What is the comparative and superlative form of tightly?

more tightly, most tightly


How do you make 3M H2SO4?

Measure out 4 moles of the acid. Place some water, around half a litre, into the vessel that will hold the final solution. Add the acid drop by drop into the water. When all of the acid has been added, fill the water up to make one litre.


Can oxygen be liberated from all oxygen containing compounds?

No, oxygen cannot be liberated from all oxygen-containing compounds. Some compounds contain oxygen in a very stable form, such as in water (H2O), where the oxygen is tightly bound to hydrogen. Releasing oxygen from these compounds would require significant energy input.


How can I make a bleach solution effectively and safely?

To make a bleach solution effectively and safely, mix 1/3 cup of bleach with 1 gallon of water. Use gloves and work in a well-ventilated area. Do not mix bleach with other cleaning products. Store the solution in a labeled, tightly sealed container.


How can I make a bleach solution safely and effectively?

To make a bleach solution safely and effectively, mix 1/3 cup of bleach with 1 gallon of water. Use gloves and work in a well-ventilated area. Do not mix bleach with other cleaning products. Store the solution in a labeled, tightly sealed container.


Is tightly an adjective?

nope, it is an adverb. It is describing the verb. Ex: tightly touched tightly held