What is chemical change also referred to

Answers

Answer 1

Answer: A chemical change is also referred to as a chemical reaction.

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

Answers

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:

It is so hard i do not get it

Answers

because your doctor gave it to you for a reason. THey gave you medicine to help you and they told you to take those pills so you should listen.

hope this helps

Why does table salt dissolve more rapidly than rock salt

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because in rock salt, the molecules are packed together and they take longer time to separate and dissolve. As for table salt the molecules are less packed together and take less time to dissolve. Think it like this. The more packed or tightly the substance/object is, the longer it will take for the object to dissolve. The less packed the object/substance is the faster it takes to dissolve. Hope this helped :)

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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!!!

Answers

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

The reaction 4Fe + 3O2 >> 2Fe2O3 is an example of what?

Answers

Answer:

Synthesis reaction

Explanation:

A synthesis reaction involves two or more reactants combining to form a single product.

4Fe + 3O2 —> 2Fe2O3

From the above reaction, the two reactants combine to form a single product. This is clearly a synthesis reaction.

What would happen if a jar of helium gas was opened

Answers

The helium will float out and will be replaced by air if you open the air.

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Chao is thinking about doing a project on plate tectonics for the school science fair. Which design would best relate to how the movement in the Earth’s mantle is related to plate motion?a pot of boiling water to which Chao will add food coloring to show the movement of the water a flat shallow pan filled with a thick liquid heated by a hot plate with thick wooden blocks on top of the liquid a flat shallow pan filled with small metal beads topped by an assembled puzzle that is shaken from side to side a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid