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2 years ago

What type of bonding is shown in the diagram above?

Chemistry

2 answers:

Gekata [30.6K]2 years ago

7 0

D
ionic bond is the strong attraction force between positive and negative ions.
covalent bond is non-metal atoms share electrons.
Na+ is positive and Cl- is negative
Na is metal

Tamiku [17]2 years ago

4 0

Answer:

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ionic bonding because one atom gains an electron and the other atom loses an electron

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Which of the following materials is likely to be the best insulator?

valina [46]

Answer: Option (b) is the correct answer.

Explanation:

Insulator are the substances which do not conduct electricity. It is known that metals are good conductors of electricity. Whereas non-metals do not conduct electricity.

Out of the given options, silver, and calcium is a metal that means they are good conductors of electricity and are not insulators.

On the other hand, silicon is a metalloid, that is, it shows properties of both metals and non-metals. Hence, it will also show conductivity.

Phosphorus is a non-metal and therefore, it does not conduct electricity. As a result, out f the given options it will act as the best insulator.

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3 years ago

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Which answer below is not an indication that a chemical reaction has occurred?

ankoles [38]

Only when there is no product that is when a chemical reaction has not occured

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4 years ago

In which situation will the friction between the object and surface on which it is moving be increased. A the object is pushed o

aliina [53]

Answer:

C the object is pushed with greater force against the surface

Explanation:

The force of friction between an object and a surface is the resistive force exerted by the surface on the object, due to the roughness of the two surfaces, and that tends to resist the motion of sliding of the object over the surface.

The force of friction exerted on an object over a surface is given by

$F_f=\mu N$

where

$\mu$ is the coefficient of friction, whose value depends on the roughness of the surface

N is the normal reaction exerted by the sutrface on the object

Let's now analyze each statement; here we want the force of friction to be increases:

A the object is pushed over a long distance. --> FALSE, this is independent on the force of friction.

b the weight of the moving object is decreased. --> FALSE: if the weight decreases, the normal reaction decreases, so the force of friction decreases as well.

C the object is pushed with greater force against the surface. --> TRUE: in this case, the normal reaction increases, so the force of friction increases.

D the surface on which the object is moving is made smoother --> FALSE: in this case, the coefficient of friction decreases, so the force of friction decreases.

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3 years ago

Which of the following material(s) and equipment are necessary to acquire the above graph? Mark all that apply. Make sure to hav

Amanda [17]

Answer:

A, B, D, E

Explanation:

This titration involved adding measured amounts of an acid (HCl) to a base, and recording quantitative measurements of the resulting pH. The necessary equipment includes ...

an acid (specifically, HCl)
a base
a pH meter for quantitative measurements of pH
a device for precisely measuring the acid (a burette works for this)

We believe these requirements are consistent with choices A, B, D, E from the list given.

An "indicator" will typically change some obvious property (often, color) at a specific value of pH. It generally is not quantitative enough for the purpose of drawing the supplied graph. A pH meter is a better choice.

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3 years ago

¿Cómo interpretas que el proceso de meteorización de suelos es causante de la deficiencia en los cultivos?

erma4kov [3.2K]

Answer:

Soil weathering is the disintegration of certain rocks that contribute minerals or that their components are exposed to the environment in which it happens, soils that suffer this phenomenon in agriculture have better oxygenation and better water filtration, since the porosity of the earth increases due to the presence of rocky structures.

Explanation:

With which as a consequence some crops are not benefited from very humid lands or where these rocks are part of the soil environment in which they develop.

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