List 4 methods that can be used to separate mixtures and physical properties that are used when using each method.this is for my homework! please help!!!

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Answer 1
Answer: well you could sort it out based on color you could stain and that uses size you could get a magnet if you want to seperate out iron or something which uses electro magnetism and if it is a liquid you could let it stand till it seperates using density

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Identity and describe the sequence of dissolving

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let hope this helps if you put salt in the water the water (eats) as i would say and breaks into pieses until its fully dissolved

:)

Which of the following is true about mixtures?A) Mixtures consist of two or more substances chemically combined.
B) Mixtures cannot be separated by physical means.
C) Mixtures consist of only one kind of atom.
D) Mixtures have to or more substances mixed together, but are not chemically combined.

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The correct answer is D. Mixtures can be easily separated solutions cannot.

How would you describe the change in the arrangement of particles as heat energy and temperature increase?

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The change in the arrangement of particles as heat energy and temperature increase because of the increase in the kinetic energy of the particles.

How kinetic energy calculated?

Kinetic energy of any atom is calculated as:

K.E. = 1/2(mv²), where

v = velocity and m = mass

So, when we apply heat energy or increase the temperature of any system then the energy of the constitute particles is also increases which results in the increase of the average kinetic energy of the particle. Due to this kinetic energy particle will move with high velocity and disturbs the arrangement of the system.

Hence, due to increase in average kinetic energy, arrangement of the particles changes.

To know more about kinetic energy, visit the below link:

brainly.com/question/8101588

Answer:

there is more energy added as heat rises

Explanation:

What physical property makes metal pots good for cooking?

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Answer is: heat conductivity.

Thermal conductuction is the transfer of heat through physical contact. Thermal conduction is the transfer of heat by microscopic collisions of particles. Heat spontaneously flows from a hotter to a colder body.

The process of heat conduction depends on four basic factors: the temperature gradient, the cross section of the materials involved, their path length and the properties of those materials.

Metallic bond increace electrical and thermal conductivity.  

Metals conduct heat, because when free moving electrons gain energy (heat) they vibrate more quickly and can move around.  


Metal pots are good for cooking because they have heat conductivity.

Balance the following equations:__CuS2 + HNO3 →

__Cu(NO3)2 + __H2SO4 +

__N2O + ___H20

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Answer:

50CuS2 + 260HNO3 = 50Cu(NO3)2 + 100H2SO4 + 80N2O + 3H2O

Explanation:

Why does an atom have the same number of protons and electrons

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Answer:

An atom has the same number of electrons and protons because that means that it has an equal amount of negative electric charges (electrons) and positive electric charges (protons).

Explanation: