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Vera_Pavlovna [14]
3 years ago
14

Types of atoms. The basic unit of matter. Pure substance is what?

Chemistry
2 answers:
ivanzaharov [21]3 years ago
7 0

Solids, liquids, gases, and plasma are all matter. When all atoms that make up a substance are the same, then that substance is an element. Elements made of only one kind of atom. Because of this, elements are called "pure" substances.

hope this helps :)

Serhud [2]3 years ago
4 0

A pure substance is a substance that doesnt have any additional ions added to it

For example, in bottled water there are Magnesium ions in it along with others. This is NOT PURE WATER

Also pure substances can be retrieved using separating techniques

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On the basis of which property of the elements are they divided into metals and non metals?
kicyunya [14]
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3 years ago
Why do atoms emit light energy according to the bohr model?
denis23 [38]

Answer: According to the Bohr model, atoms emit light because excited electrons are returning to lower energy states, emitting the energy difference. This energy always has a specific wavelength because the electrons can only exist in set orbits. ... An emission spectrum is the frequencies of light emitted from an atom.

Explanation:

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3 years ago
What is a hot spot? ( Must be in your own words) Pleaseeee Hurryy
Ilia_Sergeevich [38]

Answer:

A hot spot is an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity.

Hope this is what you mean be hot spot!

I hope this helps you!  

Have a great day

7 0
3 years ago
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Rudik [331]

Answer:

Exergonic ,Endergonic,low concentration area,high

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In exergonic reaction,certain molecules are broken down;in the process they release energy which is captured when high energy molecules(such as ATP and NADH) are formed.

                          The breakdown of these molecules can be coupled to thermodynamically unfavorable processes such as Endergonic reactions or pumping og hydrogen ion from low concentration areas to high concentration areas.

3 0
3 years ago
Which machine is the least simple? a bike a screw an inclined plane a lever
Ivenika [448]

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The other answer choices of screw, inclined plane, and lever, are fairly simple machines that don't have many things going on at once compared to a bike.

4 0
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