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brilliants [131]
4 years ago
5

Which states of matter have particles that move independently of one another with very little attraction?

Chemistry
1 answer:
wel4 years ago
3 0
Solid's molecules have very high attraction forces, so the particles stay together and vibrate rather than any strong motion. Liquids have pretty strong attraction forces, but because they are weaker than solids, particles can move more freely, so they can slide against each other rather than vibrate. Gases have the least strong attraction forces compared to the two, so they can move everywhere, and as you know, gas is not constricted and it is everywhere, so gas is the answer.
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1. Girona y Castellón están separadas 360 km. Un tren sale de Girona hacia Castellón con
Vlad [161]

Answer:

Ambos trenes tardarán 2 horas y 24 minutos en cruzarse.

Explanation:

Dado que el tren que sale de Girona lo hace una hora antes que el que sale de Castellón, y que circula a 108 km/h, al momento en que el tren que parte de Castellón inicia su recorrido la distancia entre ambos trenes, que en principio es de 360 km, se ha reducido a 252 km (360 - 108).

Así, luego de la primer hora de recorrido, ambos trenes se separan por 252 km. A la segunda hora, el tren de Girona ha recorrido otros 108 km, mientras el tren de Castellón ha recorrido 72 km, es decir, en total han acortado otros 180 km, con lo cual la distancia entre ambos ahora es de 72 km (252 - 180).

Ahora, para la última parte del recorrido, se debe dividir el horario. Así, el tren de Girona recorre 108 km en una hora, con lo cual, en 20 minutos, puede recorrer 36 km. A su vez, el tren de Castellón puede recorrer en el mismo tiempo 24 km, con lo cual, tras 2 horas y 20 minutos, la distancia entre ambos es de 12 km (72 - 60).

Para los últimos 12 km, debe dividirse el horario por un número menor. Así, en 4 minutos (60 / 15 = 4), el tren de Girona recorre 7.2 km (108 / 15 = 7.2), mientras que el tren de Castellón recorre 4.8 km (72 / 15 = 4.8). Así, dado que 7.2 + 4.8 es igual a 12, es decir, los km que faltaban para que ambos trenes se cruzaran, el tiempo en el cual ambos trenes tardarán en cruzarse es de 2:24 horas.

7 0
3 years ago
What ionic substance is being used to illustrate the concept of lattice energy in Model 1?
evablogger [386]

Answer:

magnesium oxide

Explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
Karen and nbsp; measures the initial volume of water as 12.5ml and nbsp; she then adds a 2.3 gram rubber stopper and the volume
Ivenika [448]

Answer:

8.3mL

Explanation:

According to the question, the initial volume of a measured amount of water is 12.5mL. Karen then adds a rubber stopper that weighs 2.3grams. This increases the volume of the water.

The increase in the volume of the water is attributed to the rubber stopper. Hence, to calculate the volume of the rubber stopper, we subtract the initial volume of the water from the final volume. i.e.

Volume of added rubber stopper = final volume of water - initial volume of water

= 20.8 - 12.5

= 8.3mL

Hence, the volume of the rubber stopper is 8.3mL

8 0
4 years ago
(1) Distinguish between a pure
Darya [45]

Explanation:

Pure substances are distinct substances and are usually elements and compounds.

Impure substances are usually mixtures.

In terms of properties:

Pure substances are the same throughout i.e homogeneous whereas impure substances are either homogeneous or heterogeneous.

Separation techniques:

Pure substances cannot easily be separated by physical methods whereas impure substances can easily be separated into their constituents by physical methods.

Composition:

Pure substances have definite composition both macro and microscopically whereas impure substances have indefinite compositions as they are composed of two or more elements and compounds in any proportion by mass. Impure substances retain their identities i.e physical properties are retained.

Learn more:

Mixtures brainly.com/question/1446244

More on mixture brainly.com/question/1832352

#learnwithBrainly

4 0
3 years ago
A food product claiming to be sugar free contains
ivann1987 [24]
A. because thats the health code policy for sugar free
8 0
3 years ago
Read 2 more answers
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