What technological development led to the discovery of the existence of subatomic particles?

Answers

Answer 1

Answer:

Answer:

Thomson had discovered the first subatomic particle, the electron. Six years later Ernest Rutherford and Frederick Soddy, working at McGill University in Montreal, found that radioactivity occurs when atoms of one type transmute into those of another kind

Explanation:

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32:53A chemist is studying an unknown substance. He can break it into its elemental components only by using chemical means.
Based on this observation, how should the unknown substance be classified?
impure substance
solution
mixture
O pure substance
Previous Activity
1:06 PM
10/20/2019
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Answers

Answer:

A solution

Explanation:

Mainly because a solution is a mixture of chemically bonded elements.

Where does the seed fit into the life cycle of a plant?

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It is the beginning stage

the seed is the first part of the plant's life cycle, if you are looking for something more specific then I sadly cant answer that sorry.

Two helium nuclei fuse to form a nucleus of what

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Two helium nuclei fuse to form beryllium nuclei which is highly unstable and spontaneously decays rapidly.

What are the problems with studying the structure of the earth?

Answers

well we are not able to see the internal structure of the Earth directly because we can't get at it! The thinnest crust is under the oceans but even that is around 7kms thick, way deeper than we can drill. We have to use indirect methods like earthquakes, and infer the structure from the way the pressure and shear waves produced travel through the Earth.

Gasoline is a mixture of compounds. A gasoline sample was found to be 2.851% (by mass) octane (C₈H₁₈). 482.6 g of gasoline is combusted to produce gaseous carbon dioxide and gaseous water.Write out the balanced combustion reaction of octane with oxygen gas to form carbon dioxide and water. Submit an image of the balanced reaction.
Show all work.