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2 years ago

What development led to the realization that Dalton's atomic model was too simple?.

1 answer:

8 0

The Dalton's atomic model has been considered too simple, with the development of the subatomic particles.

The atom has been the smallest part of the matter. It has been developed with the atomic model theory introduced by Dalton.

<h3>Dalton's model</h3>

According to Dalton's atomic theory, the atom has been the smallest individual unit of matter. It has not been divided further, and has been, consisting different for every material.

<h3 /><h3>Failure of Dalton's atomic model </h3>

The Dalton model has been, consisting of atom as the smallest individual particle. It has been considered to be not divided further.

However, the study revealed the existence of subatomic particles. It has been led to the development of electrons, protons, and neutrons as the smaller particles than atom.

However, the atom has been the unit that involves in the reaction.

Thus, the development of subatomic particles led to the consideration of Dalton's atomic model as too simple.

Learn more about Dalton's model, here:

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Answer:

25 grams

Explanation:

You strat off with 400 grams of your substance. By day 14, half has dcayed and you only have 200 grams left. By day 28, there are 100 grams of the substance. On day 42, there are 50 grams left. Finally, on day 56, the substance has been through four half-lives and 25 grams remain.

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3 years ago

Why does water have a lopsided shape and act like a chemical magnet?

leva [86]

Answer:

See below

Step-by-step explanation:

(a) Shape

The formula for water is H-O-H.

The central O atom has four electron pairs around it. They try to get as far from each other as possible, so they point toward the corners of a tetrahedron.

Only two of the pairs have a hydrogen atom attached, so water has a bent shape. The H-O-H bond angle is about 104°.

(b) Chemical magnet

The O atom has a greater attraction than H for the shared electrons in the O-H bonds, so the electrons spend more time near the O.

This gives the O atom a partial negative charge (pink in the diagram) and the H atoms a partial positive charge (blue).

The water molecule acts like a chemical magnet because its negative end attracts the positive ends of other molecules, while its positive ends attract the negative ends of other molecules.

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3 years ago

Which of the following is true about a carbonated soft drink?. . The carbon dioxide is the solvent, and water is the solute.. .

V125BC [204]

Answer:

The water is the solvent and the Carbon Dioxide is the Solute

Explanation:

The Carbon Dioxide is being dissolved into the Water. Solute is what is being dissolved, Solvent is what is doing the dissolving

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3 years ago

How did satellite tracking allow biologists to study the green sea turtle?

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<u>Answer:</u>

It helped biologists collect data on when and where turtles travel.

<u>Explanation:</u>

Green sea turtles need to be conserved so the biologist take help of satellites in order to track down green sea turtles.

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3 years ago

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Explain why the statement “The speed of light is 300 million m/s” is not always correct.

levacccp [35]

Because the speed of light is determined by the medium that is it in. If light is in a vacuum it goes 300 million meters per second but it is slower in air, and even slower in water because water is more dense than the previous two.

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3 years ago