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Sedaia [141]
2 years ago
13

Which correctly lists three characteristics that are used to describe air?

Chemistry
2 answers:
Marianna [84]2 years ago
8 0

Answer: density, Omass, radiation, pressure because  Radiation pressure is the mechanical pressure exerted upon any surface . Small bodies are more affected than large ones because of their lower mass relative to their surface area formed by the radiation pressure of the young stars reduces the cluster mass enough to allow rapid dispersal.

Explanation: I Hope that helped!!!

vodomira [7]2 years ago
3 0

mass, pressure, density

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When you are collecting DNA, you could be looking for a few different things. A few examples could be skin cells, strands of hair, or possibly even a fingernail. Anything that comes from a person, including blood or saliva can be potential DNA that could help investigators to link a person back to a crime.

Investigators do not need a warrant for analyzing crime scenes due to the fact of the dangers of the fire. You must work quickly because accelerants tend to evaporate within days, sometimes hours. It is also important to note that finding the origin of the fire is very important, to make sure it won't be reignited. Debris is usually cleaned away quickly to ensure health and safety issues.

The point of origin of a fire is the lowest point, since fire burns upwards.

High explosive: Ignite almost instantly, like dynamite and TNT. Two different types are primary and secondary.

<em>Primary: easily ignited, very sensitive to heat and friction. often used to ignite other explosives. </em>

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4 0
3 years ago
This mineral can be scratched with a fingernail.<br> Fluorite<br> 0 Gypsum<br> Quartz
pentagon [3]

Pretty sure it’s gypsum.

8 0
2 years ago
What are some examples of properties scientists use to describe matter?
AveGali [126]

Answer:

Physical properties are used to observe and describe matter. Physical properties can be observed or measured without changing the composition of matter. These are properties such as mass, weight, volume, and density.

4 0
2 years ago
Read 2 more answers
What is the number of electrons will chlorine most likely gain/lose
LuckyWell [14K]

Gain 1.

This is because of Chlorine's placement on the periodic table. Chlorine is a Halogen, thus being located in group 17 or 7A. This means it is one of the closest elements to being a Noble Gas or group 18/8A.

Chlorine has 7 valence electrons, and in order for it to become a Noble Gas, it needs 8. Cl- is typically the symbol used to represent this as Chlorine needs to gain an electrons instead of lose; once Chlorine gains the electron, it will be stable.

This also means that Chlorine has a high ionization energy or, in simpler terms, it would be difficult to remove an electron from Chlorine.

Hope this helps!

8 0
3 years ago
The atomic theory has been revised many times over the last several hundred years. John Dalton described the atom as a solid sph
frez [133]
<span>As new discoveries are made, existing theories are revised or replaced.</span>
6 0
2 years ago
Read 2 more answers
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