How to deal with a broken thermometer in chemistry lab ?

1 answer:

3 0

Isolate the lab immediately mercury can be easily tracked throughout a lab by people walking on spill. laboratory staff can safely clean up small spill . don't stamp on small pieces . carefully inspect the bench tops and floors before sitting. to avoid hurting .

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A reaction is spontaneous if delta G is <br> 1)positive <br> 2)negative <br> 3)zero

miskamm [114]

delta g must be negative in order for the reaction to be spontaneous bb ♡

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3 years ago

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Liquid A is known to have a lower surface tension and lower viscosity than Liquid B. Use these facts to predict the result of be

Korvikt [17]

Answer: Option (B) is the correct answer.

Explanation:

Surface tension is defined as the attractive forces experienced by the surface molecules of a liquid by the molecules present beneath the surface layer of the liquid.

And, viscosity is defined as the ability of a liquid to resist its flow. When a substance has high viscosity then it is known as a viscous substance.

Since, it is given that viscosity of liquid B is more than liquid A. Therefore, liquid B has more resistive force on its surface as compared to liquid A. As a result, time taken by liquid B is more than time taken by liquid A.

Also, Surface tension = $\frac{Force}{Length}$

Surface tension of liquid B is more than liquid A. Therefore, $F_{B} > F_{A}$ .

Thus, we can conclude that tA will be less than tB.

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All organisms on Earth have the information necessary for building them coded in their genes, and each gene is a part of the org

konstantin123 [22]

Answer:

Explanation:

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Why did you have to remove co2 from your partially neutralized stomach acid before the titration?

shutvik [7]

Answer is: carbon dioxide (CO₂) can affect the end point of the titration.

Carbon dioxide, or carbon(IV) oxide, reacts with water and form carbonic acid, which can affect the end point of the titration, because more base is needed for neutralization of partially neutralized stomach acid.

Balanced chemical reaction of carbon dioxide and water: CO₂ + H₂O → H₂CO₃.

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4 years ago

If an atom has 5 protons and 4 neutrons and is not in an excited state, how many electrons would Bohr say the atom has?

Gnom [1K]

A it is 4 i hope it helped you

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