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Margaret [11]
3 years ago
14

Qué trabajo realiza una mujer si arrastra una caja y aplica una fuerza de 300 newtons, desplazándola a 2 metros?

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
4 0

Respuesta:

Trabajo 600 Jules

La explicación :

Trabajo = Fuerza x Desplazamiento

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This problem has been solved!
Vanyuwa [196]

Answer:

NaCl and water: Ion - Dipolo forces

NaCl and Hexane: Ion-ion force between Na+ and Cl− ions and London dispersion force between two hexane molecules

Explanation:

<u><em>NaCl and water:</em></u>

The <em>ion-dipole force</em> is established between an ion and a polar molecule.  Polar molecules are dipoles, they have a positive end and a negative end.

H2O has an important charge separation in its atoms (the H has a positive partial charge and the O has a negative partial charge) and this causes permanent electrical dipoles in the water molecules.

Sodium chloride is an ionic compound formed of positive and negative charge ions, Na + and Cl-. Depending on their charge, these ions will be attracted to opposite charges in the water molecules (H attracts chloride ions and O attracts sodium ions), causing the salt to dissolve in water.

<u><em> NaCl and Hexane:</em></u>

The dispersion forces of London occur between apolar molecules, and they occur because when two molecules approach a distortion of the electronic clouds of both originates, generating in them, transient induced dipoles, due to the movement of the electrons, so it allows interact with each other.

Hexane is a non-polar molecule, which are those that have no charge separation within the molecules. Then there is <em>London dispersion force between two hexane molecules. </em>

On the other hand, the <em>ion-ion force</em> is produced between ions of the same or different charge, where ions with charges of opposite sign attract each other and ions with charges of the same sign repel each other. This is the force that occurs <em>between the NaCl ion</em>s.

5 0
3 years ago
The theory of plate tectonics was, at first, rejected by most scientists. Now most geologists accept that tectonic plates exist
Alenkasestr [34]

Answer:

The validation of seafloor spreading in the 1950s and 60s

Explanation:

The theory of seafloor spreading was supported by numerous evidence including thermal probes that showed that heat flow over the mid-ocean ridges measured up to four times those measured in general bottom sediments, which are taken as due to the presence of molten Earth material close to the ridge crest

The ridge crest also show signs unusually seismic wave velocities that are considered to be due to microfracturing and thermal expansion from upwelling magma

4 0
3 years ago
Read 2 more answers
QUESTION 14
AveGali [126]

Within each functional group, the boiling points of members of the group vary according to molecular weight. Therefore, one cannot deduce any functional group from boiling points.

Organic compounds are divided into families called homologous series. Each homologous series has a functional group common to all the members of the series. As a result of this, the chemical properties of all the members of the homologous series are similar.

However, the boiling points of the members of a homologous series vary according the their molecular weights. As such, boiling points can not be used as evidence to classify substances into any particular homologous series.

Summarily, one cannot deduce any functional group from physical properties.

Learn more: brainly.com/question/1078956

7 0
2 years ago
Which of these defines a volcano?
dalvyx [7]
The answer is b!!! !!!
7 0
3 years ago
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What is polar and unpolar bonds?
Mars2501 [29]

Answer:Nonpolar bonds form between two atoms that share their electrons equally. Polar bonds form when two bonded atoms share electrons unequally.

3 0
3 years ago
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